Anxiety and vomiting? How to stop or calm it?

I have medication but I don't know when I need to take it at the right time because it makes me extremely tired and I can't take it on the spot because I might need to drive or do something important and I get very dazed on it. My Anxiety started a few years back I would just be nervous being around people period. I would throw up every morning before school and have shakes just having to go to the super market. I've stopped taking the medication regularly and I've gotten a lot better. Now I only get nervous in new situations and with boys. Sometimes I avoid going to parties and new social situations because I'm scared I'll get sick again and in will worry about all sorts of unnecessary things like will it be awkward and etc which is normal but I don't know why it causes me to vomit? And sometimes I vomit every year about the first week of school at the thought of meeting new people. Also I've held back from dating like a normal teen because being around a boy or don't know well causes me to get extremely nervous and I vomited. I've literally had a panic attack and vomited from boys just high giving me, hugging me, kissing etc. it's really annoying and it doesn't make me feel normal at all. When I have my panic attack I won't feel better until I vomit. Sometimes I get so annoyed with it I don't even fight it I just sit in the bathroom and wait to vomit so I can feel better and stop worrying.
I'm sixteen now and I want to be able to interact with my peers without being scared I'm going to embarrass myself by having a panic attack. It's very unsettling when my friends who don't understand about the disorder want me to do something but I'm scared to do so and they say something along the lines of "oh yea you gave that anxiety or whatever." not knowing any better and I can't really say anything because it's true. I feel like I've developed a fear of anxiety itself. I'm scared I'm going to have another panic attack again. How can I ease my anxiety and stop my vomiting?

Thank you so much! Promethezines (spelling). I have eczema and itch a lot and he thought a lot of my itching could come from my anxiety too so I as originally on the medication for my itching a nausea. He suggested counseling but since I've improved dramatically I guess my parents never thought of the idea of therapy again.