Breastfeeding troubles

Myreall

So i just had my little princess September 3rd and after labor she had some problems latching because she has a tongue tie and shortly after i had some complications and was put under More drugs so they introduced her to formula ... so another reason why she couldn’t latch on was my nipple was so big and her mouth was super tiny ... now today she latched on pretty okay (work in progress) but still has some difficulties i always have to reposition her and my nipple ... but I’ve still been giving her formula because i don’t want her going hungry ... I’m just now producing more and more colostrum and have been still working with her.. is it safe to give her the colostrum inside the formula? Does anyone have any tips or advice for my situation...