Taking the same a levels as me

Nah it's not rare, although it is less common to see biology without chemistry.

Yeah I thought it was, my school doesn’t offer it otherwise I would’ve taken it so I can see why it’s less common to not have both

Your school doesn't offer Chemistry A-Level?

No, I think it’s ridiculous really

That really is ridiculous, I would consider looking for another school if you want to take chemistry, I would actually look for a different school either way, the school no offense sounds incompetent when it doesn't offer one of the most popular subjects, not to mention how big of a subject it is ( how it opens many doors ).

I’m only staying because I wouldn’t be able to deal with the stress of moving to a different school otherwise I would go to somewhere else without any doubts

Shouldn't let that stop you, it takes some time to adjust but you'll get there.

I know it shouldn’t stop me but I just don’t want my social anxiety to get worse because I feel like it’s getting a little better currently

Well, do whatever is good for you, good luck!