Hi Pinot -
Today is as good a day as any. Be grateful you have the support of your spouse, and take others advice by removing all the alcohol from your home. Definitely take full advantage of any support available.
If the thoughts of all your previous "failed starts" are holding you back, then try not to think about it that way. I will share what has helped me, as I have had a few "day ones" myself and agree they can be quite frustrating and a motivation killer.
Think back to when you realized you had a problem with alcohol.
That is the beginning of your journey.
Then try to think about what happened between the time you decided to quit and when you slipped/relapsed. What can you do to change that or keep it from happening again?
Think about your longest times between lapses and what worked during those times. Realize you did it then and you CAN do it again!
Build those sober muscles 💪