Formula Feeding Questions/Guilt

This is obviously super controversial so I'm hoping it will be civil and constructive. I had my pretty girl via c section about 3 weeks ago, happy and healthy. Me and hubby went to prenatal classes and breastfeeding classes and were super excited about it. When baby was finally placed in my hands I decided to try and feed her. I was in major pain and falling asleep from the medicine but I struggled to keep my eyes open because I knew how important it was. I had no clue if she drank or not but the next day the doctor came in and said that she was at risk for jaundice and we needed to supplement with formula and I said is there any other options and she said donors milk through a shield so that's what we did. During the stay my nipples were cracked, bleeding and hurting to the touch but I got home and decided to pump for her and put it into a bottle. At her first appointment we cut her tongue tie (didn't hurt her) in the hopes that all would be cured. I wanted to wait until my nipples healed so I kept pumping. Last week I decided that we would try again and she latched pretty good on one boob. I was super happy. The next time I tried it stung and hurt so so bad, she kept pulling off and crying her poor hungry head off so I fed her the bottle and cried only to find out that she and I both have a yeast infection. I knew I gave it to her and felt so guilty. Right now we're both being treated but I'm pumping again to avoid spreading it back and forth plus the cream they gave me scares me to feed with. Doesn't bfding hurt with thrush?if I start to be her again will I get a yeast infection again? I've gotten them several times through my life. Meanwhile I am only 2 bottles ahead of her feeding, super stressed I gave myself a cold. I think my quality of life is slowly dwindling.. I take care of her alone during the day and she doesn't allow me to pump. So I'm just looking for any advice from formula feeding moms or formula fed people, plus those that had a yeast infection before. Part of my wants to throw in the towel but I can't seem to do it. Any advice helps thank you in advance.