Need accurate diagnoses and action on multiple AC problems.
Lets see , have you considered actually using a local Air Conditioner shop ? Since no one on the web can fix it and AC problems are not do it your self items.
Then you need a good local AC shop.
And just what are these multiple ac problems . . . ?!
ac compressor clutch not engaging?
blower motor not working?
air volume doesn’t come out where it’s supposed to?
air volume very weak?
ac compressor making a lot of noise?
You’ve given us nothing so far . . .