You've pretty much stated all the necessary information in your post.

You know where the prostate is from having had it rubbed by the dildo. So, lubricate your finger, gently press against the anus to insert and then wiggle it around in order to distribute the lubricant along the sphincter muscles.

The prostate can be felt as a walnut-shaped mound two inches or 5cm up along the anterior {front) wall. The Prostate gland turns on and becomes reactive when we are very highly aroused, so my suggestion is to hold off locating and stimulating it until you are near the trigger point of your orgasm.

You can finger the outside of your anus anytime, although it too really only becomes an effective advocate when you are very highly aroused. Stimulating the anus, sphincters, and prostate work to boost those sensations you feel from other forms of caresses. The reaction is not unlike how an afterburner intensifies the power of a jet engine or a turbocharger gives a kick to a conventional engine. Masturbating with one hand and fingering the prostate with the other will really augment your orgasms. Similarly, when making love with your partner, having her caress you while rubbing the prostate will greatly intensify the sensations you are experiencing from those other caresses, whatever they may be!

For those of you reading this who do not want to finger yourself, or who perhaps cannot due to your body build, then use a dildo. You can use any of the following as a substitute for a commercial device:

* english cuccumber
* carrot stick
* candle stick
* long necked bottle
* handle of a cooking utensil if it is a long dowel shape

If you opt to use a dildo, always insert and prepare the way with your finger, first. You need to distribute the lubricant and to condition the sphincters in order to readily accept an object going "the wrong way". Then, make sure the dildo is adequately lubricated.

I hope this answers your excellent question. Got any more?