I watched the first game

You made some critical mistakes.
My comments on this (as usual: I'm only a DDK, feel free to correct any nonsense, etc.):
Move 29: if you'd played it at R3 your group was safe.
Move 37: I think that's too close. You strengthen white too much on the left side.
Next white is crawling rather high (5th line). If he manages to make territory from all this, this is very hard to catch up. But because the stones are so high there's a lot of space to play around underneath. I think I would have tried to invade at that point instead of building a wall that doesn't seem to help black's position much.
Move 93: a simple atari would have spared black a lot of headache.This would allow you to connect solidly.
Move 145: white is threatening to cut you. Your black group in the middle is eyeless. You should play J4. After white played J4, M11 is the only move.
Move 152-153: The black group looks dead to me. I can't find any sequence that would work for black. So atari and connecting seem pointless. Maybe there's something I can't see. I would be interested to hear Threeve's thoughts on that move.