Hello. I'm new to this whole ordeal as well. I did have a few hiccups when I started, getting frustrated if it didn't turn out exactly like the tutorial pics. As long as it wasn't total off, I kind of just keep plugging to get more experience with the process. I also save different files at different stages so if I do something that I absolutely can't fix, I go back to a different save.
Keep chugging at it.