Ask HN: Putting myself through college by freelancing?

I'm an 18 year old high school student. Since finishing Machine learning class on Coursera about a week ago I became really interested in Machine learning and AI. I am hoping to get into college abroad because local colleges don't have really good computer science courses. Specifically, I am considering University of Edinburgh, because of their strong AI program. Since my country is in EU tuition is free. However, living costs are pretty high (about $1100 per month). My family is poor and probably will not be able to support me financially. I've been wondering would it be possible to support myself through freelancing part time? I've been doing web development for past few years and recently I've built a few medium sized web apps using Laravel. I've also played around building some Python scripts. Could I cover those living costs with freelancing? How much should I work per week, and will it be affect the balance between studying and working?