When I first started masturbating, I could orgasm and really feel it afterwards. But now, I can't orgasm at all. I've tried using different toys and I can feel the point where I'm "finished" but no great lingering feeling or climax anymore. It's unsatisfying and it's more of something I do when I'm really bored. I've had sex with two men, one where I thought I could orgasm but he stopped too soon, and the other came in thirty seconds and didn't bother to let me orgasm (and it was too painful for me to enjoy it). What's the problem?