I feel stupid after playing this game

You end the game with more time on your clock than you started it.
You lose this game in 6.6 seconds 12...Qd7

Why do you feel stupid? It is a typical blunder when players are trying to win a game with a queen alone. Actually it's better that you dropped the queen early than in move 30. You can faster go to a new game or take a break.

It wasn't that bad, it was just a slip in rapid; perhaps you should capture with the pawn on move 8 next time - that way, your queen and your d-pawn is better protected, you have an open b-file and your queen is still pointing at their king.

You can't post in the forums yet. Play some games!