I believe I overcharged the a/c. How do I know if I messed up the compressor

Hello, first -- if you overcharged the air conditioning system and caused a pressure concern, the system would merely "vent off" the gas if it was too much. Secondly - if you're not an automotive professional with a section 609 certification with the EPA, don't mess with refrigerants. You don't have the proper education or equipment to do so. If the clutch is engaged but the hose to the evaporator core is not ice cold, then there is some other problem. Diagnostic testing is required. If it is cold to the evaporator, and you don't get cold air in the vehicle, there's a climate control problem.