Nausea ruining my life

For the past few years i've dealt with come-and-go nausea due to either Anxiety or some other stomach issue I don't know about. I was still able to live completely normally, only having to leave an event or a place once in a while because I felt so nauseous. It would commonly happen at night and although it was terrible, it rarely stopped me from doing what I want. Now im 18 and I just graduated high school last May. Probably around April it started becoming more frequent, causing me to leave places and almost miss my graduation. I am also emetophobic and absolutely petrified of throwing up so even the slightest bit of nausea could make me freak out making me feel even worse. Over the summer the nausea kept becoming more severe and more frequent. I de-enrolled myself from the university I was going to attend because I feel sick all day everyday and would not be able to sit in a class let alone drive 30 minutes away from my house. Now I can barely leave my house, hang out with friends, or have a conversation with my parents. The only times I feel decent are right when I wake up or after driving around my town for a while. Every food I eat makes me feel terrible and I always convince myself that it went bad or was poisoned. I'm looking into online therapy right now but I really don't think it is going to do anything. It's so hard to watch all my friends at college because I would give anything to feel good enough to live their life. I'm getting to the point where i'm uncomfortable all the time and I don't see a point to keep trying anymore. I guess the reason i'm writing this is because whenever I look at posts like this one I can never relate. I also have the more common symptoms of anxiety but honestly, I would rather have those symptoms be 10X worse in exchange for this feeling. Can anyone relate or am I just going crazy???