8 month old sleep

My 8 month old has been having trouble with naps lately. I know there is a regression plus the possibility of losing the 3rd nap but I cannot get her to nap longer than 45 mins. She was taking 2 hour naps a week ago so I have no clue what happened or how to get her back on track.

What I’ve been struggling with is, she sleeps 11-12 hours at night, should I be so focused on naps?

I know she needs at least 2-3 nap hours during the day but I can’t fight her anymore 😓