Go talk to a doctor they see this stuff everyday.

Seriously, there's lots of treatments. Lots of different side-effects. Between you, you'll experiment until you find something that works, and you may manage to be in a much better place than you were.

Right now, you really have no idea if you have depression or severe anxiety.

This isn't like cancer. You won't be dead in 5 years. Go get treatment, and keep your life and your job.