compresser blowing cold yesterday today isnt cold but compressor still kicking on freon recharge?
If it quit getting cold that fast, something is probably wrong. Does the a/c clutch ingage and stay on, or click on and off?
Just guessing by what your saying so far, there's a chance your compressure might have cracked and leaked out all the r134a, but we'd have to know more to really help.