I was hesitant to go solo myself, but I did for the first time this summer and it was the best time I've ever had. I didn't have to worry about whether the other person/people where having fun, or where they wanted to stand, or if they had to go to the bathroom. Plus, I got to talk to some really great people, that I wouldn't have probably talked to if I hadn't been alone. Don't be afraid. Just go in with your head held high, a smile on your face, and ready to have a great time!
ETA: I will never miss another show just because I will have to go by myself. I've missed stuff in the past and sincerely regret it now.