U.K. clock change and sleep routine

So if you’re in the U.K. you’ll know the clocks went back last weekend. It has seriously messed up my little ones sleeping! She’s almost 4 months.

She’s now screaming with tiredness from around 5:30pm. We had started a bath/bottle/bed routine which is still working however she’s now asleep from 6pm. She wakes once for a night feed (that’s normal for her) but then is waking ready to start her day from around 4:30am 😩

I’ve tried keeping her awake later at night but she just becomes hysterical. I’ve tried getting her to nap later in an afternoon but she won’t - I don’t know what else to try and I’m exhausted.

It’s currently 8am here and she’s already fallen asleep for her morning nap because she’s been awake from so early.

Please help! 💤💤💤