If your brother is who I think it is I told him I would have your back. I also told him to pass along to you that I stopped chewing more than once for moderately long periods of time, lets say 3 months plus. What killed those attempts and many others was complacency. I never said "i can have just one" it was more like my self conscious told me "hey we got this, don't worry about ONE now and then" and I would be right back to where I was before or using more heavily.
Coming in at a hundred days is odd, most of us need the support we find here to get through the first hundred days. You did not need that support, congrats on fighting the good fight and getting thought all that. But if you want to stay quit, you want we have to offer and that is simple accountability. It is the accountability that kills the complacency.
Congrats on your accomplishment so far, glad you are here. If you need help PM me. I hope you become as valued a member of this community as your brother, and hell if you don't I hope you find the help you need to remain free.