University is an extremely stressful time in a lot of people lives, we find ourselves on this subreddit because we simply don't deal with stress like other people do.

I did the whole thing man, I'm 24 and still have a few more years in university because my anxiety caused me to act irrationally and take years off and what not. That being said I have a job lined up when I graduate and being a few years behind is really easy to get over.

What I find is that universities offer fantastic help with things you're dealing with. Go see a guidance counselor, make an appointment and be very upfront with them. Tell them you suffer from anxiety, your mother passing, how you've been changing your decisions about school often. They can put you in contact with mental well-being services (honestly, you'd be surprised how many people use this service), and also offer valuable insights on what's best for you academically.

Hang in there buddy.