Anyone smoke and breastfeed or pump? Please COMMENT

Hey moms so I stopped smoking when I found out I was prego I plan to breastfeed and pump but after I have my baby I also plan to smoke again for anxiety etc. My question is would smoking and breastfeeding affect the baby at all? If you smoke while breastfeeding does it do to ur milk if so hows baby reacting? I don't wanna do formula but I don't want to affect baby either please any advice helps.