Hi, I'm male and have been masturbating for nearly 35 years now and I haven't felt bad about it any time. As a matter of fact, I have 'made it a point' to stroke my penis everyday regardless of where I am that given day. Of course, the pics of the beautiful girls I want sex with, that I carry wherever I go has helped a great deal.
Some of the benefits I've noticed, of masturbation are: stress-relief, overcoming of head-aches/ drowsiness and the like. To sum up, the act has always made my day fresh.