I just discovered this site recently and hope that you all get as much pleasure from it as I have.
I masturbate more generically, I guess. Usually, I find videos to my taste online and read erotic stories or sites like Solo Touch, and as I watch/read, I touch my clitoris and pussy until I'm really really horny. I also like using hypnosis to get horny. I just keep rubbing my clit and pussy with my fingers - eventually, I'll become so aroused that the rough contact doesn't hurt/irritate... I won't care about anything at all except the pleasure.
I loooove the feeling of my fingers up my ass, massaging and bringing me pleasure. Rubbing my clit, my asshole, and (if possible, I only have two hands) my pussy all at once brings a good orgasm, but rubbing my clit alone brings the best ones.
I also find that I orgasm differently based on where I am in the menstrual cycle. Sometimes, I can come in two minutes. Sometimes it takes 45. It just depends. If you're having trouble, just try different techniques at different times of the month!