get a toy or touch ur self while turning the shower head up 2 high and touch ur self? hope this helped!
I agree a toy might be wonderful for you, also you could try changing your shower head into one that is a masage or stream shower. hangs the same but has a long hose with the head attached. I love to use this and same as you almost daily, on the massage setting you have incredible sensation and the hose allows you the flexability to bring it right to you. You don't have to lay and position yourself.