Just recently my right rear brake has started making a grinding/dragging metal noise everytime i press on the brakes. Whats going on? any ideas lol?

sounds like you wore through the pads and are using the backing plates to stop now.

hmm. If thats the case im probably gonnna wanna get some new pads on there before i mess up my rotors.

Yeah, and QUICK! Hopefully it didn't already groove the hell out of your rotor. Just buy some new pads and put them is ASAP and you should be fine.

If it is grinding it is already too late. Plan on replacing rotors, and count yourself lucky if your current ones are still usable. I did this with my old Tempo. Since I knew the front rotors were shot, and the pads were getting close, I just let it go until it was necessary. It started making noise, and I replaced the brakes that weekend. 4 days of low mileage light city driving, and the rivits holding the pad on had already gone halfway through the side of the rotor. That experience taught me, when it starts making noise like that, it is already too late.

Well if it is trash, being its my rear brake, can i still do some driving and not have to worry about not stopping lol?

yea your rotors are trashed ...... I would not recommend driving it as is its not really safe and will end up doing further damage if the piston goes out to far it will wreck the caliper or both in some cases. You will also get nasty brake metal shavings all over the wheel and if bad enough the car that wrecks the finish.