Okay, today it got a bit hot when driving so i went to trun on the A/C. And well, it didnt really cool down at all. I got my A/C recharged in 2 summers ago, and im worried that there might be a leak now.

I used my A/C on and off during the winter (when my windshield got foggy and crap) but isnt an A/C recharge supposed to last a long ass time?