How do you survive with the lack of sleep?

I know this question has already been asked many times before, but I’m genuinely curious. How do you survive the nights and lack of sleep? My baby is 8 weeks old and, more often than not, finds it very difficult to settle in her crib / carry cot, especially at night. We’ve tried all of the hacks - she just doesn’t seem to like sleeping in the crib and will often wake up 20 minutes after being transferred, even when she’s in a deep sleep. Fortunately, I have a lot of help from my partner and mother. I don’t know how I’d cope alone. I’m in awe at people who manage to do it alone. How do you all cope? Any anecdotes, stories, tips would be much appreciated X