Need advice and no judgment plz

So i went to a bachelorette party last night and I had a fee cigarettes… im very disappointed with myself so i dont need a lecture…

I was EBF but we stopped about a month ago. Now we breastfeed maybe once or twice a day and the rest of the time shes on formula.

I really want to get back on the breast feeding train but now i have nicotine in my blood. So 2 questions:

How long should I wait to nurse and be sure theres no more nicotine in my milk?

How do I up my supply after kinda stopping?