The engine rated this game 200 ELO, but I found a double sacrifice mating net. Why is the engine punishing this sequence so harshly?

Event "Columbia02 vs. NPNAIR"] [Site "Chess.com"] [Date "2026-04-08"] [White "Columbia02"] [Black "NPNAIR"] [Result "1-0"] [WhiteElo "587"] [BlackElo "580"] [TimeControl "600"] [Termination "Columbia02 won by checkmate"] ​e4 e5 2. Nc3 Bc5 3. Bc4 Nh6 4. Nf3 f6 5. d4 exd4 6. Nxd4 d6 7. O-O Nc6 8. Nxc6 bxc6 9. Bf4 f5 10. exf5 Bxf5 11. Re1+ Kd7 12. Qh5 Bg6 13. Qh3+ Bf5 14. Qh5 Bg4 15. Be6+ Bxe6 16. Rxe6 Kxe6 17. Re1+ Kd7 18. Qh3+ Nf5 19. Qxf5# 1-0 ​My context: I’m a beginner (playing for less than 2 months). Personally, this felt like one of the most brilliant games I've played so far because of the Bishop and Rook sacrifice that led to a forced mate. However chess.com estimated ELO at 200 and AI noted the game was low quality and filled with tactical blindness. I only know the first few moves of an opening and the rest I just try to develop and not blunder pieces which is what I did in this game The engine wanted me to pressure the king side sooner but it seemed like trading a bishop for a knight and checking with the queen while it could be blocked with a pawn made no sense to me I constructed a mating net and sacrificed two pieces to do it and my opponent after taking the second sacrifice only had two moves to prevent check mate and missed it. I have looked at the game over and over but I just don't understand.