You Just Missing Intermediete Move Here, 13.Bxe7 and You Won A Pieces, And The Another Problem is You Giving Bishop For Pawn, Missing Some Possibility Defence By Black.
Novice endgame help!

You Just Need Improve Your Tactic And Your Rating Will Rise,Your Opening Actually Pretty Good Because You Following Principle Development And Center, Your middle game is Ok Eventhough You Missing Tactic,You lost Because You Giving Bishop For Pawn Instead Just Taking Knight And Play e4.

On move 12 I would play a4 or e4, moving a bishop twice is a wasting move but opponent blundered On move 13 you missed a tactic find a way to win a piece (for white) On move 20 I'm not too sure about the sacrifice it's risky I think you could calmly outplay him On move 25 Qc5 is strong move, you can't block with a queen because of tactic (try to find it) he blocks with the knight you go back and you have extra move sinse the knight sucks here the biggest mistake here was patience you could easily win that, you didn't need to rush with sacrfice since you're winning anyways, you sacrifice when you're sure it's winning or you're desperate

You have an interesting, very aggressive style, pretty good, but if you're overlooking wins of pieces like this then your tactics aren't strong enough to be making sacrifices like 19. Bxf5.
Your entire post is great but this is especially true. My tactical ability should grow to a higher level to warrant such aggressive/questionable at best moves.
I, in the learning process, am okay trying these things from time to time, understanding that its -EV but i want to try things and make alot of mistakes to grow.
Hey all, began chess around 7 months ago. Have only played online games the first month or two i started, but have been going to the chess center 1-2x a week the last 3 or 4 months. Have also been trying to improve the customary route with puzzles and books and chessables. I would love some analysis of this game, specifically in the middle to end game portion. Being a beginner, there is much to improve everywhere including goofing up the opening, but i was wondering if my thoughts on some positions later in the game are a decent diagnosis. Thank you!!