I did a science degree and couldn't hack it, so I empathise, not chemistry mind just physics so probably less lab work and a lot more maths. I was in a bad place that time in my life though, social anxiety off the charts, binge drinking beyond even normal student behaviour. Mostly just skipped labs, my lab partner was a chill dude, and unlucky to be saddled with me, basically a loser stoner who didn't even wanna be there. I hope he's doing alright now. Luckily I made a few good friends who would sign me into lectures and shit that I never went to. I shouldn't even have gone at that time in my life I think, I went right after finishing school just coz it was what I thought I was supposed to do. But I was a mess for 3 years and it's a miracle I even got a degree out of it. It was a good uni as well, some of my passes were so close to the line I think they probably just scraped me through to keep the statistics high. I never thought it would be possible to basically fudge a quantum physics exam until I actually did it, just memorized like 2 A4 sheets of notes beforehand, and would write down anything vaguely relevant to the question that I remembered, add in some random arrows and hey, there's your proof.
Last year I was in halls I basically just cocooned in my room smoking weed all day and watching shit on my own. The people I lived with weren't a bad crowd, I was just a socially dysfunctional recluse, afraid of the world except if I was fucked up enough to be catatonic and an annoying liability. I coulda had some good times there for sure but when I was done... it was a relief.
Looking back to who I was back then... I don't even recognise myself. Like, I was troubled. Not chaotic troubled, more like just retreat, isolate, silently endure kind of troubled. I don't say this a lot coz people are always like yeah, uni, best years of your life... but for me, they weren't.
If I went back now it would be different of course, but also the world is different now, I'd be a mature student... whole dynamic would be off. I wasted those years but, that was my life, if I'd done anything differently, that person would not be me, just an otherself living another life in someone else's world, so whatever, that's my past self and I accept it.
I do hope to go back into study eventually though, just gotta finish unfucking all the paths I burned to get myself to the place I am today.