What is up with my baby at 10 weeks

Baby is ten weeks and for the past 2 nights it has been horrible getting her to sleep.(and daytime naps too) Tonight was especially difficult. I spent 3 hours trying to get her to sleep, because she is fighting her sleep. When she finally got to fall asleep, she would wake up in 10 minutes. I finally got her to really fall asleep at 11.. but at 1140 she was up again. And now again at 2. Idk what's going on with her. What I've learned from being a new mom is that these things change every 2 days or so... so let's hope for the best.

How are your babies doing and how old are they now??