going back to breastfeeding

Tiffany • Noah and Luna’s mommy💜💙
Lately we have been giving our son Formula because it feels like he's not getting enough breast milk but I really want to go back to breast feeding or at least pumping breast milk is there any tips on how to do this he's going to be 2 weeks towmorow I just really want to breast feed him still but also I get very anxious doing it because I get so worried that he's not getting enough.