Just left transitional housing through a rehab program I did today and I’m shit scared…

I’m almost 8 months clean from all mind altering substances including cannabis and have just left an AOD residential/transitional program today and my biggest fear is relapse, I’m about to move back to my home town where I have little support and looking for advice on ways I can stay recovery focused or hear from others who’ve got more time up and their experience of when it gets better after being a heavy smoker for years, thank you!