I was curious and ran your first game through Lizzie since she was accessible at the time. (In my experience, they are similar at our level.)
I got the same winrates that you did:
But I have a different interpretation of what went wrong. I think the main issue is that you are focusing on killing and territory, while in this game, Lizzie thinks you have more opportunities playing for influence.
For example, at move 82, you decline to fight the ko, and allow black to get out without any compensation. But this only reduces your winrate from 80 to 70%. A loss, but Lizzie still thinks you have the advantage.
- Click Here To Show Diagram Code
[go]$$c
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . X . X O . . |
$$ | . X O . . O . . X . . . . . X X O . . |
$$ | . X X O . . . . . , . X X X O O X O . |
$$ | . . . . . . . . . . . O O O . . . . . |
$$ | . . X . . . . . . . . . O X O O O . . |
$$ | . . . . . . . . . . . O X X . X . . . |
$$ | . X . . . . . . . . O X . X . X . X . |
$$ | . O O . . . . . . . W O X O . . . . . |
$$ | . . . , . . . . . , . . X O . O . O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . . . . . . . . O O O O |
$$ | . X . . . . . . . . . . . . O X X X X |
$$ | . . X . . . . . . . . . . . X . . . X |
$$ | . . . . . . . . . . . . . . . X X X . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . X . O . . O . X . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
You seem upset that you were not able to kill black's stones, but Lizzie does not seem to think that this was a big problem. For example, at move 60, Lizzie seems to think that a and b kill and thinks your move lets them live. (She thinks black should ignore your move and jump left with the weak group.) She prefers a and b, but your move only reduces the winrate by 5 percent.
- Click Here To Show Diagram Code
[go]$$c
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . X . X O . . |
$$ | . X O . . O . . X . . . . . X X O . . |
$$ | . X X O . . . . . , . X . X O O X O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . O . O O O . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . X . . . . . . . . . . b X . X . X . |
$$ | . O O . . . . . . . . . a . . . . . . |
$$ | . . . , . . . . . , . . . O . O . O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . . . . . . . . W . O O |
$$ | . X . . . . . . . . . . . . . . X X X |
$$ | . . X . . . . . . . . . . . . O O O X |
$$ | . . . . . . . . . . . . . . . . X X . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . X . O . . O . X . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
From what I can tell from Lizzie's preferred moves and the resulting variations, she seems to think that if you play in the bottom left corner black will either have to give up the corner with little compensation or give you territory in the lower left of the center. The first move where Lizzie prefers this is actually move 82 where she wants to leverage the ko to do it. But even without the ko, she thinks this is the way to go. For example, move 110 is the move where you fall below 50 percent winrate with a. She thinks you could have avoided that with the following:
- Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . X . X O . . |
$$ | . X O . . O a . X . . . . . X X O . . |
$$ | . X X O O . . . . X . X X X O O X O . |
$$ | . . . X O . . . . . . O O O . . . . . |
$$ | . O X . X O X . . . . . O X O O O . . |
$$ | . O X . X X . . . . . O X X . X . . . |
$$ | . X O . . . . . . . O X X X . X . X . |
$$ | . O O . O X . . O . O O X O . . . . . |
$$ | . . . , . . . . . , X X X O . O . O . |
$$ | . . . . O . . . . . . . O . O . . . . |
$$ | . O O . . . . . . . X . . O . O O O O |
$$ | . X . . . . . . . . . . . X O X X X X |
$$ | . . X . . . . . . . . . . . X . . . X |
$$ | . 5 7 . . O . . . . . . . . . X X X . |
$$ | . 4 1 3 0 . . . . , . . . . . X . . . |
$$ | . 6 2 X 8 O . . O . X . . X . . . . . |
$$ | . . . . . 9 . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
- Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . X . X O . . |
$$ | . X O . . O . . X . . . . . X X O . . |
$$ | . X X O O . . . . X . X X X O O X O . |
$$ | . . . X O . . . . . . O O O . . . . . |
$$ | . O X . X O X . . . . . O X O O O . . |
$$ | . O X . X X . . . . . O X X . X . . . |
$$ | . X O . . . . . . . O X X X . X . X . |
$$ | . O O . O X . . O . O O X O . . . . . |
$$ | . . . , . . . . . , X X X O . O . O . |
$$ | . . . . O . . . . . . . O . O . . . . |
$$ | . O O . . . . . . . X . . O . O O O O |
$$ | . X . . . 7 0 . . . . . . X O X X X X |
$$ | . . X . . . 6 . 9 . . . . . X . . . X |
$$ | . O O . 1 O 4 . . . . . . . . X X X . |
$$ | . X O O X 2 3 5 . , . . . . . X . . . |
$$ | . X X X X O . . O . X . . X . . . . . |
$$ | . . . . 8 O . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Lizzie eventually kills the black stones in the middle and white gets center territory. At my current skill level, I'd never be able to read this out in game, but it illustrates where Lizzie thinks your opportunity is starting with move 82. In other sequences, white takes up a position in the corner and leaves black with weak group given the surrounding white stones. Here is what she prefers to your a at 106:
- Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . X . X O . . |
$$ | . X O . . O . . X . . . . . X X O . . |
$$ | . X X O O . . . . X . X X X O O X O . |
$$ | . . . X O . . . . . . O O O . . . . . |
$$ | . O X . X O . . . . . . O X O O O . . |
$$ | . O X . X X . . . . . O X X . X . . . |
$$ | . X O . . . . . . . @ X X X . X . X . |
$$ | . O O . a . . . @ . @ @ X O . . . . . |
$$ | . . . , . . . . . , X X X O . O . O . |
$$ | . . . . . . . . . . . . O . O . . . . |
$$ | . O O . . . . . . . X . . O . O O O O |
$$ | . X . . . . . . . . . . . X O X X X X |
$$ | . . X . 8 . . . . . . . . . X . . . X |
$$ | . 7 . 9 0 O . . . . . . . . . X X X . |
$$ | . . 1 2 . . . . . , . . . . . X . . . |
$$ | . . 3 X . O . . O . X . . X . . . . . |
$$ | . 5 4 6 . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
In all of these sequences, white's marked stones play an important role. The decline in in the winrate that lizzie thinks white could achieve starting with move 114 seems to be due to black cutting these stones off from the center.
Looking at all of this as someone who is only slightly stronger than you, I think that the strategy necessy to win after move 82 is probably too advanced to expect yourself to play right now. I don't think you should ignore it, but I think that explains why players like @bernds and @ez4u disagreed with Lizzie's assessment. From my experience with Lizzie, I'd recommend going back to the moves up to 82 and see what moves you might have made to put yourself in a position that does not require such a complicated strategy to win.