Opening
1. Didnt need to wait to 11.d4, 10.d4 would have been ok as well, since I have bishop on c2. This was an auto-play that usually protects e4 pawn.
Middle game
1. 17. dxc6 is a mistake. No need to allow Nxc6 with a tempo. Instead I should have waited to cxd5, exd5.
2. 28.Nxe7+ is a BIG mistake and Im losing advantage I had from 26.. Nd4 mistake. My though was that I need to have check in order to prevent 28.. Nxd1 but I missed that I can threat the queen and gain the same tempo. So I missed taking higher ranked piece.
3. At the end, 35. Qc5 was a blunder. I didnt calculate the exchange and the fact that there will be no pawn of f2 for easy promotion by black.
Points to take
1. Need to improve my calculations and visualisation.
2. Timing: Second mistakehappened after 5 seconds, so no calculations whatsoever and third mistake happened after 30 seconds which were misused.