Hey sweetie,
Just a couple of thoughts, perhaps now that she is a little older when you do your little top up to soothe her prior to putting her down, try and make it a little earlier just to avoid feed to sleep associations (I know she is going to sleep herself, but she might be feeding to calm iyswim?).
If she wakes at 5:30am I would probably just give her a short feed (enough to settle her down) so that when she gets up at 7:30am she will take a decent feed to start the day.
There is a big gs at about 8 weeks I think, so she might be increasing your supply in preparation for that?
tbh I am having similar issues with my 19 week old, but she has HUGE wind issues and I am pretty clueless and tired too, so mainly wanted to offer you lots of hugs, it will get easier sweetie, hopefully this is a temporarty glitch!
More hugs
xx