@kuma1106
You are in very tough situation wanting to help, but addictions can be a vicious cycle. If interested in connecting with others families and friends who are dealing with addicts, you might check out following two groups:

Al-anon
https://al-anon.org/
Nar-anon
https://www.nar-anon.org/
It probably does not matter which group your seeking help from, people trying to help addicts face similar struggles.