When my partner and I were fairly clueless when we started sleep training our daughter. On the advice of a dear friend and doula, we started sort of low-key sleep training when our daughter was just 3 months old. She was suffering from major baby FOMO and wasn't sleeping well, or frequently, and especially during the daytime. Since we barely knew what we were doing, we didn't realize it would probably be a good idea to tell ourselves a few key things during a pre-sleep training pep talk. Sure, hindsight is always 20/20, but I have a feeling these clutch phrases definitely would have made the entire process a more peaceful one.
I know sleep training isn't for everyone. Trust me, I know. Since sleep training our daughter, I've seen and read and been bombarded by every single article, claiming sleep training is the most cruel thing I could do to my baby and, as a result, my baby would never bond to me the way co-sleeping babies bonded with their mothers. It's really hard to avoid those messages online, and even in person with friends who have strong beliefs about and against sleep training. What worked for my family doesn't necessarily have to work for your family, though, and that was the crux of what my partner and I told ourselves before we sleep trained our daughter.
The other critical part of a pre-sleep training pep talk was that my partner and I were having it together. We were a team, and that was so important for our daughter and for our family. So as long as you tackle the whole sleep training thing as one united front, and tell yourself the following things, you're going to be just fine and sleeping in no time.