Another thing to try, in addition to these great suggestions, is to change the method of jelq. Sometimes it works for me. E.g., if you’re sitting down and jelqing with your unit aiming to the ground and you find yourself getting too hard, take a couple second break, then aim it to the sky and jelq. And the reverse too. Sometimes changing things up gives an opportunity for you to not want to bust the nut.
Also, I’ve read on here that refraining from ejaculating around PE sessions is a good thing for results. I don’t have enough experience to say for sure whether I agree, though I think I am leaning in that direction. But there is, in one way, an indirect benefit to holding out. It’s kind of like a test of your will. If you can avoid holding off ejaculating (a strong urge), then you probably have the will power to do PE the next day as well. It’s like a little promise to yourself, or a kind of incentive to keep at it. Reward yourself on an off day with a spunk filled afternoon. But, if you can get laid, then have at it. I’m mainly talking about the great adolescent past time..
Man, I’ve gotta say. I believe in PE. Still getting the hang of it, but I believe.