Help my 6 month old wakes up at 12am & 5am

My baby has consistently been waking up at 12-12:30am and 5-5:30am for the last 3-4 weeks or so. Before her night feeds were every 2 hours, then they kept stretching out until they were every 4 hours or so (she even used to have a 6-8 hour night stretch but that's gone now).

But now I feel like she's on a schedule, 12am & 5am ish. I'm a single mom and so doing all the night feeds on my own, so I found it easier to just feed her to put her back to sleep. Did I get her used to a bottle at those times?? How do I fix it?? 😭

She usually goes to bed at 9pm, sometimes 8pm. She still wakes up at the same times. Did I create it so that she depends on those feeds, or is it normal still?

I guess my question is whether or not it's normal for my baby to wake up at the same time each night for a bottle? During the day it's not like this at all. She feeds based on need, so about every 2-2.5 hours. Sometimes sooner if she ate a lot less that usual.