what if I actually don't want to go to uni?

Take a gap year and see how you feel after a few months of not studying - perhaps you just need a break. If you still feel like you don't want to go to uni at that point, there are plenty of other paths so it would not be the end of the world.

every time we went into lockdown or during this summer I have dreaded studying again so if I take a gap year I 100% will not be returning to study, urgh I really don't know what to do but thanks I'll talk about it with my parents

do something else instead

like a different degree? Redoing a personal statement in 2 months with no supercurriculars for another subject area is going to be difficult...

granted, but not impossible

or you could literally go and do something else - something entirely different. work somewhere for a bit while you figure yourself out. I did this and went back to university at 24

but ik for sure everyone around me will be disappointed in my choices

It's your life, your future and your choice. As much as you should listen to your family and friends' advice you shouldn't let them influence you too much to the point of you being unhappy in your life/what you're doing

That's actually not a bad idea, but ik for sure everyone around me will be disappointed in my choices and I'm worried about if I regret it after. I'll think about this too

I'm going to be in y13 this September and I'm planning on applying for pharmacology, from my year 12 final mocks I got AAA* but I felt like I could've gotten 3A*s if I didn't get sick during the exams. I realised for a while I really am dreading of going to uni because the idea of studying for another 3/4 years seems so boring, maybe it's the subject choice too though idk. I'm studying geo, bio and chemistry and I love geo and chemistry a lot (human geo that is). Whilst I do find drugs interesting, I've attended taster lectures and idk what to do, I don't feel any enthusiasm anymore.

I think you need to differentiate whether its the through of studying pharmacology at uni for 4 years is whats getting you down, or studying in general.

If you imagine you was studying something else at uni you loved (not pharma), would those happy feeling return? Explore many avenues of your 3 alevels and see what you can do with them, then see if any degrees inspire you. Then imagine studying that said subject at uni. Does it excite you? if not then, its the studying in general is whats getting you down.

would it be weird for me to suddenly be interested in a humanities subject? All my alevels lead to science degrees but what if I don't want to do any of those degrees?