How to cope with anxiety?

So I've been on venaflaxine since I was 18, 27 now and it has helped for the most part but I still get so anxious! Going Into a crowded store,place is impossible for me without feeling like I can't breath. Even if its not alot of people say I go over to my parents and my sister is yelling on the phone and my dads talking to my husband and my mom is trying to talk to me.. I can't do it. Its so much I feel like throwing up. Work has been like that alot lately I'm a pharmacy tech and we hired alot of new people for the holidays and our little pharmacy having 10 techs and a pharmacist with constant patients it gets to me alot and I retreat into myself and only talk when I have to because in my head I'm freaking out and I know so many people who suffer with anxiety but they somehow cope? & I just don't know anymore how to function without getting so overwhelmed and mad at myself for being this way.