Personally, my biggest obstacle is staying concentrated. I work on one website or product, and then when it's 3/4 ready or even time to sell, I get sidetracked. Everyday, that's the battle I face. Staying concentrated for several weeks or months at a time on one project. My second obstacle is finding time. College is demanding. Tests, assignments, readings, mid terms, etc. What's your biggest obstacle? Time? Money? Motivation? Knowledge?