It's not a joystick in a car. You will not wear it out. On average, you will not create any problems later.
ha ha thats the best was to put it ever secrates sperm by forcing penis from hand. I guess you dont speak english and used an online translator. But what thehitman said its not problem everyone does it and it wont hurt you in the long term I have been doing it for years a few times a week and alls good
Not sure I understand what "forcing penis from hand" means . . .