I would stop faffing about and take it to a proper aircon guy.
I have always read that DIY regassing is a total waste of ££s
As you have now found out you have spent ££s to find you have a leak.
An aircon guy will check if there are ANY leaks and until they are sorted no regas.
They will replace the dryer ( not expensive ) check the compressor and its clutch.
Probably put some dye ( and lubricating oil) in the system and confirm that the temperatures are to spec.
If you indicate your home area then you may get pointed to a trusted A/C company.
I have always read that DIY regassing is a total waste of ££s
As you have now found out you have spent ££s to find you have a leak.
An aircon guy will check if there are ANY leaks and until they are sorted no regas.
They will replace the dryer ( not expensive ) check the compressor and its clutch.
Probably put some dye ( and lubricating oil) in the system and confirm that the temperatures are to spec.
If you indicate your home area then you may get pointed to a trusted A/C company.