I don't know when it happened but my rear lights just went out, the brake lights still go on, so whenever I'm driving at night and see a cop I lightly press on the brake pedal so I won't get pulled over. Any suggestions of what I could do? Busted fuse? I'm not trying to put any more money into it. My gauge lights stopped working awhile ago also, but I don't really care about that.

 

You may have already answered your own question.....Fuse. Start there. If you can't afford a fuse, how can you afford the gas???

The tail lights & the brake lights work on 2 separate fuses, so 1 working & the other not, is no surprise.

 

Would it be one of the fuses behind the drivers side kickboard? Or somewhere else?

 

the guage lights and running lights are on the same circuit on purpose, so you know when you dont have running lights. If you are lucky, you can just replace the fuse and you're all set. But thats highly unlikely. most likely you have a short to ground either at one of the running lights or in the dash. until you fix the short, it will just blow the fuse as soon as you replace it.
there are various ways to find where the short is, but they are all a pain in the ***. You'll need a good voltmeter and a set of wiring diagrams. maybe you can find the light thats shorting by examining the sockets.
Good luck