In my 86 chevy s10 i blow a fuse in the same spot every time i turn on my lights and then the rear running lights (not brake lights) stop working im tired of getting pulled over so how do i find the short in the system? (p.s. i bought the thing used and the electrical system is real wonky)

Short circuit most likely in rear light wiring

Did you check all the fuses?

Not easy to diagnose. Most probable cause is an intermittent short in the power wiring between the hazard module under the dash and the brake and center stop lights, or a problem with either that module or brake light switch on the pedal. I would start by inspecting the socket wiring and interior of the sockets on the rear light modules.

your power starts at the brake light fuse,check with a test light,then proceed to stop light switch on brake pedal under dash,one wire will be hot when when you check it with your test light, the other won't be until you press down the brake pedal then the power flows through to the second wire,if no power to second wire replace switch,if you have power remove tail light bulbs and check for power in side socket.

Check the front and rear (although probably the rear) turn signal bulb socket for corrosion and/or water intrusion. If you find corrosion attempt to clean (but you will probably have to replace the socket and bulb). For water intrusion you will probably have to replace the break lamp assembly.

Do you have power with a test light in and out of the switch? Do the turn signals work? Will the brake lights work if you play with the turn signal handle?

Am I correct, the turn signal fuse is blowing when you put the manual shifter in reverse?
Let me know.
Regards

what about the sockets of the lights are they rusted in the contact spot and touching the 2 positive connections

If the problem is that the brake lights will not turn off, the problem is most likely the CHMSL relay. An easy check is to take the cover off the fuse block mounted on the driver's side fender well and swap the fog lamp relay with the CHMSL relay. If that fixes it, just get a new relay for the fog lamps and you're good to go. Note, my 2002 s10 does not have fog lamps, but it still had the relay populated in the fuse block.

The problem is the turn signal/headlight/hazard switch assembly on the steering column which the brake light wiring runs through. The part is easy to change and cost about $50 at most parts stores