My first AA meeting was almost the exact experience you had.
I tried living sober on my own with no face to face support. After five years, I convinced myself things in my life were going well enough that I could drink and not be sucked back down into the bottle.
I was very wrong.
This year has been a series of starts and stops...till finally, I surrended, and went to AA.
I have never felt the freedom, peace and love that I feel in those rooms. Those people are just like me, they get me, and the crazy thoughts and feelings I have.
I am so glad your experience was a good one.