Baby takes forever to fall asleep

My LO is 10 weeks old and the last week or so she has been fighting sleep, crying more, and taking forever to actually fall asleep when we try to put her down for a nap or even at night. Last night she slept very poorly and kept waking up as well. I’ve downloaded the wonder weeks app and I know there is a leap at 8 weeks but I feel like this is happening now? Could that be true and maybe it’s off about 2 weeks for me?

Also any tips on putting a baby down for a nap or to sleep would be appreciated! We have been making sure she isn’t overtired yet it still feels like a challenge.