Anxiety and panic when close to being in a relationship.?

I'm ready to admit to a problem and need some advice. Every time I go on a simple coffee date, which is usually set up by friends and family, because I am too scared and shy to do it on my own, I tend to have a lot of worries and panic feelings. At first, I would find fault with the guys, and try to move on. But if I sense that he might like me, I go crazy in my mind, and back off. To make matters worse,since I come from an Indian culture, and I'm 33 single, family is slightly pressuring me to find someone and get married. They keep suggesting people, which makes me more nervous, when i meet them, I have a fear that I will be trapped with someone I don't truly love, just to please family. I don;t want to do that. I recognize that Im just scared of commitment, perhaps? Im not sure, I don't want to lose any opportunities, and I feel guilty for not going forward with some guys who have nothing wrong with them, except I cant see myself go forward with them. I feel like my thoughts are going in circles. i cant sleep or eat lately. Any advice or suggestions?