My understanding is marijuana - yes; tobacco - depends, but in most situations probably not.
I know quitting pot can be VERY hard for some people, myself included. Most are able to take it or leave it and don’t feel a strong attraction for it, but some of us are just strongly drawn to something about its intoxication. You just have to pray and realize that even if you can’t see anything obviously wrong with the habit God obviously does or he wouldn’t have forbidden us from doing it. Take it as an opportunity to exercise your obedience and humility.