Well, while hentai hasn't really helped me in my sex life or anything like that, it has actually helped me become more confident, and if anything, slightly higher self esteem. Reason I say that is when I was a kid, I had very low self esteem, heck I still do. But when I see these artists draw the things that they do, despite the fact they get ridiculed, they still do it because it's their passion. So I look at it this way, if these guys, and girls, draw this stuff while keeping their heads held high, why the hell can't I be proud of my cooking and computer skills?
But yeah, hentai has actually helped me in my life.