Doing science a-levels and want to do an art foundation degree. How?

I'm doing chemistry, biology and psychology a-levels and I've decided I'd like to do an art foundation degree. I have a rough portfolio (which I will be working on throughout the year), and my main concern is funding. From what I understand, you cannot get a student loan for a foundation art degree, but I do not want to stay living at home. Are there bursaries that I can apply for that could make not living at home possible?
Furthermore, I want to study game art if I feel I want to follow an art route. What is the best course to allow me to do this, and should I make my portfolio digital-based because of this?

Check what you're applying for.
An art foundation DIPLOMA is a 1 year FE course (so no fees if you're 19 or under but no living cost loan) that will be designed to help you develop your art and explore different media as well as prepare a portfolio to apply for a creative degree.

A foundation DEGREE is a 2 year HE course that is equivalent to the first 2 years of a 3 year degree. As an HE course you would be charged £6-9k pa in fees and would be able to claim a tuition fee loan and a living cost loan.

For diplomas some universities/colleges offering these courses will have bursaries and scholarships available to help support students on the course. There are also charitable grants that you may be eligible for (depending on your home postcode, where you study and your family background). It's also possible in some cases to claim for income support - but you need to speak to someone to verify your eligibility before committing to anything. Working over the summer and part time evenings/weekends (or finding a way to make money from your artwork) is the other option.