Hi, I think you've already answered your question, habit. I went through 3-4 different styles before achieving the one I was looking for. I also kept on falling back into my old habits and ending up with the same style but with time I was able to change that habit into something I liked. Now I draw in my style without even thinking about it. I know this sounds like a drag but trust me, you just have to be patient and continuously draw until you get what you want.
Watching timelapses of the artists i like is what helped me the most tho I must say.
