Can I please have some serious advice? (19M)

I’m 19 turning 20 soon and I’ve been addicted to porn since I was 11, I used to do it once a day , since then. But this year , I started doing it more than twice in a day.
I’m finally deciding to quit, I’ve realized that this addiction has caused me a lot of problems since then. Please , if anyone has been in the same situation as me , I would love some support and advice. Thankyou