Is it normal to dislike masturbation, but to do it anyway?

Whenever I masturbate, I'm always dissapointed afterwards. I never orgasm, the closest I have come is spasms, and that was really uncomfortable. But still I masturbate at least once a week, hoping it will change, hoping I will come. I have come to resent masturbation, and fear that I will never enjoy beeing intimate with another person. Is there something wrong with me?