Okay, I can't seem to get a set bedtime for myself down. My 2yo is in bed by 8pm. Alot of the time I…

Okay, I can't seem to get a set bedtime for myself down. My 2yo is in bed by 8pm. Alot of the time I fall asleep when she does! To me , that's feels too early. BUT I never feel like I'm getting enough sleep. We are awake between 730 and 9 just depending on the adventures of the day before and how exhausted we are. I feel like I need to stay up after she goes to sleep so I can actually get some things done that I can't do when she's awake but I can't force myself to stay awake no matter what I do. We are working on her sleeping in her own bed since I have less than a month till dd2 gets here. So far Ive gotten her to sleep in her bed but I have to be there for her to fall asleep. It's been a hell of a process and I regret waiting. Should I just enjoy going to sleep at 8/9pm and keep the awake times or should I really try to find a way to stay awake and get things done?

I'm so just so damn tired y'all