^^ Check out the Njoy Pure plugs. Superbly made stainless steel and a perfect shape to stimulate your prostate. Not cheap, but worth it. Don't bother with the small size, get the medium right away. The handle is perfectly shaped to fit between your cheeks while still keeping it from going inside you - it's very secure. And the ring shape allows easy removal. Someone put a lot of effort into the design. Check them out at Pink Cherry instead of Amazon. They usually have better pricing and I also found a code. Got mine for quite a bit under $100, so much less than Amazon, and you support a small Canadian online retailer.
As for skipping having someone else do it, nope, I still prefer to have a skilled woman penetrate me. It's more erotic and the unknown makes it feel better to me. But, whatever floats yer boat.