Not sure I understand what "forcing penis from hand" means . . .
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
It's not a joystick in a car. You will not wear it out. On average, you will not create any problems later.