I have had better luck with harder toys that put more direct pressure on the prostate. The aneros line is the best and I have had tons of prostate orgasms with those toys. They put a more subtle pressure and if you are patient you will be rewarded. I have had some really enjoyable orgasms through pegging and I always go with a firmer silicone dildos with a curved up head to also hit my prostate.

Maybe you need more intense vibrations? Perhaps, e-stim plugs or prostate massagers can help you to reach orgasm more quickly?

I give myself hands free anal orgasms that are literally multiple intense anal orgasms. I love being pegged by a female but when alone and I'm craving a strapon session I use a golf club. When you put the part that hits a golf ball under something heavy like a bed leg or large pot plant the shaft of the golf club is at perfect height for me to get myself head down ass up. The golf club can still move around it's just weighted down. I lube the shaft of the club and myself and when head down ass up back my ass onto the shaft. They don't have much girth but I ride them so deep often passing the grip. I have done this inside, outdoors and it really feels like I'm getting pegged. It's amazing and I recommend this too anyone. I love it when my girlfriend watches me her words and eyes all upon me and she spanks my ass. I always want too wank but no this is all about anal and I'd get your gear off and thank me later