Is it normal that orgasms don't feel especially good?

I'm a female virgin. Masturbating and having an orgasm feels somewhat good, but it isn't nearly as good as some people have described. Orgasms feel only a little bit better than everything else. It's more of a release of tension than anything. That, and I've only ever been able to have one. I've heard that to have multiples you should continue touching yourself afterwards, but it feels too weird. I have to go through a recovery period before I can do it again. Am I doing something wrong? I only stimulate my clitoris. I know where my g-spot is, but it doesn't really do anything for me. Is it better with someone else or am I always going to have orgasms that are just so-so?