You've got a great style and i can see you going far, I agree with Forrest dont let the lazy bug get you. Try to draw at least one thing everyday and try to practise the things you dont like drawing, if you let them slip past you now you'll find it harder as you get older.
I love the minimalistness that your art has but that being said try new things too. Here's a tutorial that really helped me think about composition and lighting which i think you could benefit from. http://itchstudios.com/psg/art_tut.htm