Most people only get one round of uni funding so don't do something you hate and get stuck in it unable to retrain into anything else. Perhaps consider a gap year, you could get some work experience in jobs you might be interested in to see if you like them (engineering, finance, anything else that floats your boat), get a part time job to earn some savings / general work experience, and even have some fun / maybe travel a little.
All this would help you be more sure of the area you'd want to go into when you next apply, give you great experience for your applications both to uni and beyond, and maybe help you improve your mental health so you can be passionate again when you go into uni. There really is no harm in doing a gap year or not going to uni straight away, especially when you'd be likely to fail / do badly on your course as a result. You'll have like 40 years after uni to build a career, one year out now really won't do you any harm and potentially a lot of good.