Hey Angel, I understand how you feel as I also got a small nick not too long ago on my rear wheel. Do a Yelp search for rim repair and take it to them for a quote. Usually it'll be somewhere between $150 to $200 if I remember correctly. If you want to tackle this yourself, you'll need to use a filler to fill in the nick, sand it flat, then paint it. If you are tight on budget and don't need perfection, then maybe you can use this as a weekend DIY project.
Watch this video so you get a general idea: