Quitting

Any advice on quitting weed? Anything that can make it easier? I made a promise to my friend because he was getting really worried about me but it’s getting hard. I’ve heard that you should quit gradually like smoke once a week and then once every 2 weeks, etc,etc. But I feel that if I start doing that I’m just going to say fuck it and start smoking as much as I want again. Any advice?

P.S. so far I’ve gone 9 days clean and the temptation to call my dealer is starting to get to me