my ac stopped blowing cold and i already checked the freon and everything, i noticed that the ac compressor doesnt spin....well the belt spins, but it seems like the opposite side slipped off or something cuz theres a pretty big gap and i can manually spin it while the belt is spinning, how do i fix this???

 

Your clutch is not being pulled in.

 

The freon may be too low, therefore the low pressure switch is not allowing the a/c clutch to engage. Take it to a shop that is competent in a/c servicing. They will pull a vacuum on the systema and remove any moisture in the system, replenish the oil if its low, and charge it according to specs.
Assuming nothing is wrong mechanically.