There's a lot to learn. It's a very fluid process and not an exact science, so I probably can't explain it very well, but try some basic figure studies. Not just anime you like, I also highly recommend learning some basic anatomy, just skeletal proportions and basic muscle groups, so you know how everything is supposed to look. Anatomical knowledge gave me huge art gains, though I'm still learning.
Good luck to you, too. I hope you keep trying.