I have a newly 3 year old son, (he’s a wild child always has been) now I’m 12 weeks with my second, now I heard that going from one to two kids is the hardest transition (compared from going to 2 to 3 )

Is that true? Now my son has never been a calm child he’s always 100 all the time, also he still doesn’t really sleep through the night he will come into our bed around 4.

I’m just nervous now I know the lack of sleep, but I feel like compared to how crazy my son already is, having a newborn should be easy (kind of) I mean compared to him now, the easiest time was when we was a baby when he couldn’t run around.