The only way to achieve what you want in art is practice and having your mind open for inspirations. It may be discouraging at times when you think you're hopeless but always keep in mind that all artists were once beginners. No one is born already talented.
No, I know that, but you said you were out of practice and it still looks really good. Of course I need practice, I've only done digital art for the past few years. I'd love to do that, I just have to get to drawing on the good paper and all that.