Trying to figure this chess thing out

Where did I mess up in this game?  I am black

1. e2-e3 d7-d5
2. c2-c4 e7-e6
3. c4xd5 e6xd5
4. b1-c3 c8-e6
5. d1-a4+ c7-c6
6. a4-b3 g8-f6
7. b3xb7 f8-c5
8. b7xa8 d5-d4
9. e3xd4 c5xd4
10. g1-e2 e6-c4
11. b2-b3 d4xc3
12. e2xc3 f6-d5
13. b3xc4 d5-b4
14. e1-d1 o-o
15. c1-a3 d8-a5
16. a3xb4 a5xb4
17. a8xa7 f8-d8
18. a1-b1 b4xc3
19. a7-e3 c3-f6
20. h2-h4 h7-h6
21. h4-h5 g7-g5
22. c4-c5 b8-d7
23. a2-a4 d7-e5
24. a4-a5 e5-g4
25. e3-g3 g4xf2+
26. d1-c1 f2xh1
27. g3-e1 f6-f4
28. a5-a6 h1-g3
29. a6-a7 f4-d4
30. b1-b8 d4xc5+
31. c1-d1 c5-d6
32. a7-a8 d8xb8
33. e1-e8+ b8xe8
34. a8xe8+ g8-g7
35. f1-c4 g3xh5
36. e8xf7+ g7-h8
37. f7xh5 g5-g4
38. h5xg4 h8-h7
39. g4-g8++

You left a pawn en prise, and then on the next move a rook.

- Rob