Will it stay the same, or will you adjust it?

Right now the girls head upstairs to read and wind down around 7:00pm. LO2 is in bed by 7:15/30 but LO1 takes a lot longer to wind down and fall asleep (closer to 8:30)...so I'm a little lost on how I should adjust things, if at all. I think starting routine and not being in bed until 8:30-9:00 is a little too late, but maybe I'm just being selfish with my much needed me time.