Welcome to the forums man!
It’s great to have another brother join us here.
If you want a good place to start, I’d highly suggest you take a look at some of the challenges hosted on this forum. They can be a great help to newcomers and they still help me today.
Currently I am in the “Check In - Daily Diary Challenge” which has really helped me to stay mindful and beat this addiction. However I came to that challenge after a lot of experience and knowing how I wanted to approach this, so you may want to start with a more beginner-friendly challenge that has a great community and amazing strategies to keep you accountable and get you started. That challenge would be “The Hero’s 90 Day Challenge” hosted by Forerunner.
I highly recommend that one. He utilizes all of the strategies that have helped me to get to 99 days PMO clean and that have helped him get to 170 days PMO clean.
Thought I’d throw those out there if you’re interested. Additionally, a lot of users like to turn their intro thread into a daily journal where they kind of go their own route but can still get support from this community, and that’s totally a good way to go too.
Anyway, hopefully that helps you to get started here. I wish you good luck man 
I’ll be around if you need anything 
Links to Challenges: