Why isnt my ac working properly

What is your question?

My ac in my 2005 buick rainer was blowing warm air when the ac was on so we tried a rechage and sealer and now when its on its a little cooler but it feels like my truck going to stall

What makes this problem better or worse?

We had to restart the truck to make it stop feeling like its gonna stall out and keep the ac off

How long has your 2005 Buick Rainier had this problem?

A few hours