You're doing exactly what you should, HOWEVER, do NOT get overconfident. This is going to be a life battle. I am the same exact way, homebody/nerd too
I think going to an AA meeting once a week at least, just as a refresher of your commitment, will help keep you on this new journey called life that you've found! I have seen people relapse heavily after 90 days, 120 days, 3 years, 10 years.. it's all you to decide if you can keep it up on your own, many of us cannot, me included.
Congrats on 90 days, it's a big milestone in recovery! Treat yourself to a nice Sunday Brunch at Taps this weekend! Just skip the bloody marys
Iced tea is your friend!