If you have good grades in your Bac, you could consider applying for medicine with a foundation year (designed for people with non-science A-levels or equivalent). *You'd need to get some work work experience, take the UKCAT, and do all the usual things like a good PS and a variety of extra-curriculars.
It sounds as though some work experience would be a good thing to do generally, to make sure that you're making the right decision changing career direction. *Best of luck.*