Any new ways to pleasure myself? I urinate before I finish

Hi. I'm an 18 year old male with a 6.5 inch penis. If your penisis that big congratulations but if not don't try and brag about it as when you have sexual female net rafting later in teenage life they'll start laughing at you if you haven't. Anyway below are a few methods I use to change it up. Wanking with the opposite hand. Wanking with the back of your hand facing upwards The stop and go method which is where you wank until you nearly orgasm then stop, wait about 30-60 seconds then start again and repeat until you can't stop until you orgasm and you'll probably cum loads with this also.