Congrats on the 100 days, that is awesome!
It certainly wouldn't be a bad idea to check out AA. It is not like you have to sign on the bottom line. When I buy a new to me car, I always take it for a test drive to see if it is a fit for me. AA might interest you. It might not.
For me, the twelve steps of AA are a big part of why I am not only sober, but also comfortable in my own skin.
Either way, just keep moving forward because life gets better when we do!