Welcome!! This forum is great. Read and post as much as you can, especially in the first days of sobriety. This post in particular is extremely helpful:
Marijuana Anonymous also has online support groups that you can check out, all totally free. Meeting Finder - Marijuana Anonymous
This FAQ post has a LOT of helpful links to various threads here at TalkingSober:
You got this! Keep checking in and work the program. If you put in the effort, you will reap the rewards. It’s not easy, but it is simple. You can and will do this!