its different for different parents and different babies which hits we find harder.
As someone told me, we have to adjust ourselves and lives to being a parent sometime.
they were telling me that in the context of me having a very demanding newborn and finding it really tough, and really struggling with others saying how much they were enjoying eg trips to the park with their baby which I found a nightmare.
that baby was also demanding as this age but it was slightly better for me than the newborn phase!
if you’ve found the baby bit easy then them getting mobile and starting to have opinions can come as a shock.
But that is real parenting - it’s more of a negotiation than when they are really little and can decide everything and actually get plenty of breaks of they are good sleepers.
read up as bit
www.ahaparenting.com has great guides to ages and stages and behaviours and what they are telling you and how to respond.
and know this:
it’ll change again.
my first only really got easier when she could talk (which thankfully she did really young). She seemed to dislike the lack of autonomy of being a young baby.
years later she is still strong minded and independent and smart and curious and into everything!