Invasion, contact fight advice in review (4k vs 6k)

This game was Fischer time with 2 minutes total, 30 seconds per move.

I lost by 0.5 points due to a miscount as endgame started. I thought I was ahead by 10 and played some slack moves (e.g. 193) as a result.

I think my main mistakes were

  • move 13 should have been at Q6 (how could this develop?)
  • I should have ignored the attachment in move 17 and let him spend 4 moves there
  • I wasn’t sure how to fight effectively beginning with move 29 (35 should have peeped at m2 first?)
  • Move 61, where and how to invade?

Thanks for your attention!