Smoking while breastfeeding

My baby is now 1 month old, I haven’t smoked since I was 3mon pregnant and I was wondering is anyone smokes or takes edibles while breast feeding?

I talked to my doctor and she said there’s little to no research that can say what it’ll do to my baby and some mother’s smoke weed their whole pregnancy and after and have completely healthy babies. We both agree it’s not as harmful as cigarettes and that second hand smoke is probably the most dangerous factor of this but I’m still on the fence.

Any advice? I’m too anxious to sleep and I can’t seem to relax enough to sleep more the 2-3 hours a day. Melatonin makes me groggy and wine dries up my supply.