Hey, sorry to hear that you struggling.
Ive never been to uni (currently in year 11) but my brother has. He went to Manchester uni to study petrolium engineering, and he hated all three years. He just about graduated and is currently back home in between jobs. From the past two years since he graduated, I know for a fact he would do anything to go back to change his degree because nor was he good at it or passionate about it as now he is also struggling with depression which developed when he was in uni. My opinion to you is basically do whatever makes you happy and wont cause you to be regretting your decisions in 5/10/15 years time, you know. Dont care what people may think as they dont know what you have been through.
But before you do anything rash, make sure you have a plan. Would you do a gap year? Get a job? Find a new degree asap? As long as you have a stable and logical plan, do as you wish!
All the best and I hope something I said was useful haha!