In the UK you would probably finish your degree in the normal 3 yrs, no? You are looking at 4 or more in the USA. Really, even just applying to US schools is going to cost more than your parents will be pleased with, plus the visa plus the financial verification and again, health insurance which school might demand. . You should really focus on your viable future, invest in your academics so you can get into a desirable UK school. Pick a nice UK location.