I exclusively breast fed for 18 months with each of mine. Well, after the first few days when I was so ill I hadn't even been to SCBU to visit them.
They both had aptimil for about 36 hours. My youngest was tube fed for 2 weeks because she was premature (she'd stopped growing and was born by emcs) and her mouth was too small to latch on.
I bf both successfully eventually. My first after 48 hours when I was sneeringly told that if I went down from the maternity ward to scbu to feed him myself, I'd "be up and down every night for evermore" (er, yeah, that was kind of what I expected) and also told to cover up whilst bf in scbu in case I offended the dads who were visiting their own babies. That didn't put me off, so they made a big show of wheeling a huge screen around me and apologising to the other parents for the noise and disturbance but they'd got a mother who was "insisting" on breastfeeding... 🙄
Anyway, my point is, google is making you feel bad? Welcome to motherhood 😉 Fuck 'em. Do what is right for you and your baby. Don't let anyone else make you feel bad for being the mother you are or for feeding in the way that is best for you and your baby - whatever that turns out to be.
My reason for telling you my story, is that people tried to make me feel bad for delivering prematurely (yes, woman in Asda who shouted at me for having a premature baby, I'm talking to you); for bf ("i think you've made your point now"; "you're not still doing that are you?" - both from family); and for delivering by EMCS. Don't let them make you feel bad but the only people who count in this matter are you and your baby.
You are not awful; you are awesome ❤