Very well written description of what it feels like being new. Nicely done.
Doing all the AA stuff made a difference in how I felt after a few months had passed of continuing to be whacked and feeling lously and confused.
You'd of course be welcomed back to make a fresh start. Hopefully minus the errors you made last time. 90/90 does nothing good for an alcoholic-just show up a lot and commit to call before you drink again. Forget about timetables and stressors. You're leaving the stressful life for a better and more relaxed one and shouldn't be manufacturing new ones for yourself.
Don't wait to feel/look good, or trust your head to pick a perfect time. Just begin.