Help why do all my games end in stalemate
[Event "Vs. Computer"] [Site "Chess.com"] [Date "2021-11-13"] [White "katieannb"] [Black "Beginner"] [Result "1/2-1/2"] [Termination "Draw by repetition"] 1. d4 g6 2. g4 a5 3. a4 Ra7 4. Bd2 Nf6 5. e3 Nc6 6. Be2 e6 7. Nc3 Nb4 8. Ra3 Ke7 9. g5 c6 10. gxf6+ Kd6 11. Ne4+ Kd5 12. Ng3 Bh6 13. c3 Kd6 14. cxb4 Qe7 15. bxa5 Rxa5 16. fxe7 Ra7 17. Ne4+ Kxe7 18. Bb4+ Kd8 19. Nf3 Kc7 20. a5 d5 21. Ne5 Bf8 22. Nxf7 dxe4 23. Nxh8 Bxb4+ 24. Kf1 Bxa3 25. bxa3 b5 26. axb6+ Kd7 27. bxa7 Kd8 28. a8=Q Kd7 29. Qa7+ Bb7 30. Qxb7+ Kd6 31. Qb8+ Ke7 32. Qc7+ Kf6 33. Qxc6 Kg5 34. Qxe6 Kh6 35. Qxe4 Kg7 36. Qe5+ Kg8 37. Nxg6 hxg6 38. h4 g5 39. hxg5 Kf7 40. Rh7+ Kf8 41. Rh8+ Kf7 42. Rh7+ Kf8 43. Qd6+ Kg8 44. Rh6 Kg7 45. Rh5 Kf7 46. Qd5+ Ke7 47. Qa4 Kf8 48. Qb4+ Kg7 49. Qe5+ Kf7 50. Qf5+ Kg8 51. g6 Kg7 52. Qd7+ Kxg6 53. Rh8 Kg5 54. Rg8+ Kh6 55. Qdd6+ Kh7 56. Re8 Kg7 57. Qe5+ Kg6 58. Qe6+ Kh7 59. Qf5+ Kg7 60. Qg5+ Kh7 61. Qh5+ Kg7 62. Qg5+ Kh7 63. Qf5+ Kg7 64. Re7+ Kh8 65. Qf6+ Kg8 66. Qe6+ Kh8 67. Qf6+ Kg8 68. Re8+ Kh7 69. Qf5+ 1/2-1/2

Your games end in stalemate because you don't know how to check mate. Learn how to do that and stop capturing all the pieces simply because you can.