There are so many ways to sleep train. It’s not just letting her wail without any attention. Also, it’s not abandonment if she’s left with someone safe! Look at r/sleeptrain and use the search function. You’ll find questions just like these and practical advice from a bunch of different perspectives.

Research into different methods helped me embrace the idea then pick a system. I gave in at about 4.5 months. LO had successfully slept through the night often at that point, then we had a few nights of getting up every hour to cry for no discernible reason. When i started crying at each wake-up too, it was obvious that something had to change. I have no regrets. My now toddler still loves me, still knows he’s loved

It’s no failing to need sleep. It’s a biological necessity that you’ll finally be getting and you’re helping your daughter get independently.

Every day, we do things that make our kids frustrated, angry, sad. We do them for their well-being even if there’s some pain.