You'll go blind No, but seriously it's common to feel regret from that. A lot of people do, and I remember that I also felt like that when I was younger. There is a certain cultural attitude of poking fun at it/negativity surrounding it that it's common for people to feel regret. There's no reason to though, because literally everyone does it. By everyone, I mean literally every single human being masturbates. It is literally something 100% of the population does, so there is no reason to feel guilty. It's as natural as going to take a leak.