If I were you, I'd get qualified as a pharmacist, work your arse off and save some money. Grab every opportunity you can after a few years (independent prescribing, further qualifications etc) and get a couple of years tuition fees saved up in the bank. In 4 or 5 years time of working in the health service, decide at that point if medicine and further study is for you.
The maturity, NHS experience and further qualifications will do a lot to support your application.