Can’t make myself to denial

Hi, I am a 18 yo male virgin and I don’t understand how I can get me to denial myself. I can make it to not masturbate for a week if I am not at home and it would be impossible to do but otherwise I just do it. I’m almost never able to ruin orgasm aswell cause I pussy out. Are there special tricks I’m missing, am I just too young to hold it back or am I not mentally able in general to make this? Get your own Orgasm Control toys: For men: http://www.amzn.to/1V6XQvv For women: http://bit.ly/1UWn54n