for a month stopped working air conditioning, not only cool is hot air, in the beginning it cooled enough now not and do not is a lack of gas, because I check and okay

I bought what I thought would be a good car...NOT! My a/c will not blow on 1,2,3 or 4, and I'm freezing on 5. Is there anything I can do to fix this problem or do I need to take this up with a mechanic?

Heater A/C has to be turned up to 4 or 5 before blower works.

i have a lot of complaints every couple months there something else wrong with it

does anyone know or has replaced the blower motor switch in this car ?? (in dash) im told thats the problem .. part cost $27.00