Low supply and won’t latch

Amanda • 𝑀𝒶𝓂𝒾 𝒹𝑒 𝓟𝓻𝓲𝓷𝓬𝓮𝓼𝓼 𝓔 𝓎 𝓑𝓮𝓫𝓮 𝓚 ♡ . . ♡ 𝟘 𝟙 . 𝟘 𝟙 . 𝟚 𝟘 𝟙 𝟡 ♡

So I gave my daughter a bottle and formula at 3 days old since I was worried she wasn’t eating much and now she doesn’t want to latch anymore.. (she’s a week old now) I’m pumping but I’m only making 1 oz - 1.5 oz .. what can I do to produce more milk and any way I can get her to latch again (I tried the nipple shield but she’ll only stay for a few seconds) :( I feel so bad since with my first daughter I didn’t breastfeed or pump much since she wouldn’t latch at all for me and I was making less than an oz.