Does anyone have some idea on my A/C repair?

[esse10]

If you have never done A/C repairs before I would not recommend doing your own repairs unless you have a helper who's done it before. You can only check to see if the clutch engages on/off without the compressor spinning or you'll damage compressor.You really can't check the compressor unless it has Freon/oil in the system or you'll cause damage to the compressor. And you can't just put Freon unless the system is properly flushed and cleaned first. The safety low and high pressure switches are there for a reason. There is a lot of work required in order the get this system back operational. I would recommend taking it to an A/C shop. I just replaced the A/C system myself in my VW new beetle two years ago and it is a lot of work, a lot of steps where things could go wrong and you almost have to start over again. It took me a whole weekend.