Advice

So my daughter is 1 month old today. I have been exclusively pumping since giving birth, but she was starting to become fussy and gassy from my breast milk, so my husband and I have made the decision to switch to formula in hopes that it will help her stomach. Any advice for weaning her and helping me to dry up? I don’t want to quit cold turkey as that may affect her stomach too but i also don’t want to prolong the weaning process either. Any advice would be appreciated.