/biz/ - Business & Finance

I made a website for a local business here in Vancouver today using shitty wordpress. It was a reluctant from the start.
I wasted 3 days of my ( actually great ) web development bootcamp (Lighthouse Labs) in order to do the website for her, for $500, now she says she won't pay me $500 because she doesn't like it and she needs rework, but I don't want to waste my web development bootcamp days, and I have a lot to catch-up because of her.
So out of frustration I emailed and told her that I don't want her stupid money, and that no amount of money will let me catch up with my lost coursework.
I then logged into her godaddy, and changed her nameservers to a random website's. Also deleted her CNAME, MX, records.
I feel like such a loser. I should have taken money in advance. Add to that, I'm a jobless fuck who's only way to get an IT job is through this bootcamp.
How do I cope?