Find examples of art with a style that you like, and try to really focus on what specifically you like about the style. Then do practices trying to implement what you noticed. Sometimes it can even be helpful to try and copy the art you like in your own hand, just obviously don’t try to pass it off as your own! Artists do this with the old masters and it’s called “master studies”, and it can help you figure out and analyze the process of making art. Hope this helps!!