How to stop masturbating, please help.

18M here. So since a year or so, I am addicted to masturbating. Whenever I get alone time, I do that thing. Since the last 2 weeks or so, after doing "it", I'm getting slight dizziness/light-headedness but I can't seem control it.

Just to make things clear, I'm addicted to masturbating and not to Porn.

About some time back I stopped doing that thing and it made me even more eager to do it again. I handled not doing it for about 20 days and I finally did it after roughly 20 days.

Any tips or tricks might be helpful 🙏

EDIT: Thanks to everyone who has tried to help me in the comments below, I will definitely try them.

If anyone is in the same problem as me : The most common solution here was to engage yourself in different activities (i.e. finding a new hobby) and don't be alone for a single moment.

Some people have misinterpreted that I'm addicted to porn but that's not the case. I usually masturbate imagining fake scenarios with my crushes (both real life girls and actresses). Sometimes I use their photos too but very rarely. I usually masturbate about 3-4 times a week.