When is it too late to switch sixth forms?

I normally trust my gut and find I was right to do so but I’m not sure what to do here.

Would switching sixth forms make my situation worse? As in would it be likely that I’d find myself more alone?

Appreciate any responses

If you want to change sixth form, based on you being lonely, you will still face the same challenges of trying to make friends. Is this the only reason why you want to swap? What is your situation? At this point in the year, it is unlikely, as the classes would be full - and sixth forms may already have a waiting list