Are these grades good enough to become a doctor?

I doubt now that I can be a doctor or even anything to do with medicine because of these GCSEs. They're not bad, but not excellent either, which is what you need in order to be accepted into medical school.

So here is what I got:

French B

History B

Maths A*

Science A

Additional science A

English lit A

English language B

The problem with these results is that in some of them I was so close to getting an A or A*, like in history the first exam I got an A* but in the next one I got a D, so it averaged out into a B overall.

Also, for A levels, I'm taking bio, chem, maths and psychology. Are A levels more important than GCSEs?

Thanks :)