Blowing the Endgame

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 a6 6. a3 Nf6 7. Nf3 Bg4 8. Be2 e6 9. O-O Ne4 10. h3 h5?! 11. Ne5 Stockfish gives 11 hxg4. After my move, it is back to even. 11 Ne5 Nxe5 12. Bxe5 Bd6 (Bxe2) 13 Bxd6 (hg) Qxd6 14. Bxg4 hxg4 15. Qxg4 (+.58) g5 (+1.2) 16. Nc3 Nxc3 17. bxc3 f6 18. Rfb1 b5 19. Rb4 Rh4 20. Qe2 g4 (now +2.5) 21. g3 Rxh3 22. Qxg4 Rh8 23. Rab1 (a4) Kf7 24. a4 Rag8 25. Qf3 Rb8 26. axb5 axb5 27. Rxb5 Rxb5 28. Rxb5 f5 29. Rb7+ Kf6 30. Qf4 Qxf4 31. gxf4 Rc8 32. Rb3 Ra8 33. Kf1 Ra1+ 34. Ke2 Rc1 35. Kd2 Rf1 36. Ke2 Rc1 37 Ra3 Rc2+ 38. Kf3 Rc1 39. Kg3 Rc2 40. Kf3 Rc1 41. Ke2 Rc2+ 42. Kd3 (abandoning the P/f2) Rxf2 43 c4 dc 44 Kxc4 Rc2+ 45 Kd3 Rb2 46 Kc4 Rc2+ 47 Kb5 Rc1 48 Kb4 Rc2 49 Rc3 Ra2 50 Kc5 Ra5+ 51 Kd6 Ra6+ 52 Rc6 Ra3 53 Kc5 Rxe3 54 d5 Rc3+ (Kf7) 55 Kd6? (Kd4) Rd3 56 Kc5 (Rc5) Rc3+ (Rxd5+) 57 Kd6 Rde 58 de Rxf4 58 Kd7 Re4 59 e7+ Kf7 60 Rc5 Rxe7+) 61 Kd6 Re6+ 62 Kd5 Kf6 63 Kd4 Kg5 64 Kd3 Kg4 65 Rc8 Kf3 66 Rf8 Rd6+ 67 Kc2 f4 68 Rf7 Ke3 69 Re7+ Kf2 70 Rf7 f3 71 Re7 (Rg7) Kf1 72 Rf7 (Rg7) f2 73 Re7 Rg6 74 Kd2 Kg2 0-1