compressor will not cut on at all don't know what to do

System pressure doesn't matter much if the compressor isn't turning on. You'll need to see if it's an electrical concern or a refrigerant system concern. I'll advise to seek professional air conditioning help because a certified technician must be involved to handle refrigerants legally. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops