Give yourself deadlines! Talent is based on repetition and the more one does it the faster and better they get. Im reaching a point where whatever I imagine i am executing to the T (if not better). I had plans today to pick up my girl but I thought to myself hey while I wait to go pick her Im gonna have a sketch for me to work on when I am free. She was running late and kept pushing the time I was supposed to pick her up. I made myself a deadline that by the time she is ready this illustration will be done. Bam! I did this illustration in about 2 hours.