Was my knight salvable after the queen exchanges? After the queen exchanges at move 23., I realised my pinned knight was going to die. I had a couple of moves to try to prevent the inevitable, but I couldn't:

[fen ""]
1. e4  c5 2. Nf3  Nc6 3. Bc4  e6 4. O-O  d5 5. exd5  exd5 6. Re1+  Be6 7. Bb5  Nf6 8. d4  a6 9. Bxc6+  bxc6 10. Ng5  Qd7 11. Qe2  Ne4 12. Nxe4  dxe4 13. Qxe4  cxd4 14. c3  Be7 15. Rd1  O-O 16. Rxd4  Qc7 17. h4  Bd5 18. Bf4  Bd6 19. Bxd6  Qxd6 20. c4  Rfe8 21. Qf4  Re1+ 22. Kh2  Qxf4+ 23. Rxf4  Be6 24. b3  Rd8 25. Rf3  Rdd1 26. Na3  Rxa1 27. Nc2  Rh1+  0-1


Was I suppossed to see 4 moves ahead after a simple queen exchange? If so I think chess is ridiculous and only geniuses should play it. I am tired of losing because of things like this. I will stop playing chess, BYE.
Give credit where it's due; Black made some good moves.  What's important here is that you didn't lose because of a queen trade.  You lost because your opponent exploited your weak back rank.  Your back rank was weak because h2 was under attack by the black Queen, your King's Rook was off having an adventure on d4, and your Queen's Knight was never developed which shut your Queen's Rook out of the game.

In addition to the above, your opponent seized the open e file with his Rook.

In any event, the 20. c4 move is what caused the immediate issue.  I'd recommend 20. Na3 instead.  After this, Black is having a good game but most of the immediate pressure is off your back rank.  I don't think you want to put your Knight on d2 since it may get tangled up with the Rooks; I can see Rad1 in your future, for example.