I did my undergrad at 22 and law school at 30. Uni when you are older just gives you greater value return. And you are surrounded by ambitious people who are smart, fun and funny. Hang out in the grad pub. It doesn’t have to be the best Uni in the most expensive city. Start in a general program and find out what you like. In canada - Uni is still pretty cheap and still the easiest path to a white collar salary - even if that means at least a masters nowadays. It will also help you better understand and deal with you mental health issues.