As above, funding is your problem. You will not qualify for UK Student Finance. To get a study visa, you need to prove that you already have enough money to support yourself throughout your stay, so working to support yourself once here is not an option. You cannot get a study visa for a part-time course. As has been said, full scholarships in the US sense are non-existent in the UK. Had you considered studying in the States? They may actually have better funding opportunities for International students.