Moves 31 and 33 ( and maybe 29 ) were way too small. Something like G16 would have been bigger.
By move 33 your stones are way over-concentrated.
41: Just play the honte move at H16. Not only does it patch your weakness, but it attacks without touching.
That's a clever invasion over in the lower left.
But it went awry. At move 83 ( or 85 or even 87 ) you could have pushed through at D995-103: This is way too deep. It will almost certainly die. { EDIT: ok, you lived. But only due to his poor attacking play. }
128: He should just play J12, and you are doomed.
Overall, you are compromising your stones by playing too close to strong formations - both his and yours. Playing too close to your own is inefficient; playing too close to his is dangerous.