Life In 19x19

For the last few games (online and tournament) i seem to get worse with each game. I rarely read, and when i read i often misread simple things..
Sometimes it feels like forgot how to play go.

But luckily this isn't one of these games. I actually managed to win this game (played just now on KGS), even though in the middle part i thought i had blasted it again.

Anyhow, i can't say wether i played good or bad in this game but that may just because of my current state of mind. In the end i felt i just got lucky.
So i would like for some pointers where my mistakes lay and wether they are simple reading mistakes or of a complete different nature.
I'm black by the way.


Move 83 is the point, where i thought i had thrown the game away. Because with H11 he can cut me in sente (if i block) at j11 and then cut at m5.
I was surprised that he didn't push out with his stones after i connected at m5 but instead took the stone at m11.

Anyhow any comments are welcome =).

I have one main comment. From move 53 on, you can kill white's bottom-right corner (unconditionally - no ko). Now try to find how.

11 looks bad to me, I far prefer a pincer.

For 39, I would rather extend to R8 without giving atari.

White 60 is an endgame move in a busy middlegame - I think black should ignore it, and add a move to the weak group.