Life Plan - Need Advice - Degree Problamo

Alrighty everyone. I am currently in Year 11 and I have my GCSE exams in a few months.
I am listing below the subjects I am taking for GCSE and what I am predicted for each:

English - B
Maths - A
Stats - A
Art - B
Chemistry - B/A
Biology - A/A*
History - B
Geog - B
IT - A/A*

Now next year for A levels it is obviously relevant that I pick subjects for my degree in a good university.

Now I would like to go into a computing course for a degree. As I really enjoy technology and computers, I would love to make programs. But the problem is they all require maths or physics at A level. I am not great at maths even though I will have to work hard for an A at GCSE. As for physics I stupidly did not pick it for GCSE as the option blocks did not fit.

However next year my school IT teacher has decided to teach a Computing A level instead of an IT A level.

Could I get into a computing course at a good university even without the required degree?
Computing A level must be at least if not more useful then a Maths A level for computing right?

I also love media but I thought at GCSE'S it would be far to easy, so I may do it for A level.

So I could pick these 2 subjects for A level (of course one would be an AS level):

- Computing
- Media
- Unknown
- Unknown

But I need help with the other two. Hopefully your answers can help me decide, thankyou.