Bed time routine ideas for 7month old

[allthetrees]

So I currently have 0 routine for my 7 month olds bedtime. I've been really lazy always just taken her for a walk to settle her.
I want to develop a night routine but don't know where to start.
Many say read a book, but she gets so excited when I read to her, and others say bathtime, but she's hated baths since the day she was born. She seems to have no reaction for white or pink noise. She gets so overtired too, it's like one second she's playing and the next she's telling me she's exhausted, it's like there's no in between.
She struggles to settle in her crib, but when she does it can take hours of her crying and spluttering for me to get her to settle. She's definitely tired when I try, I'm 100% on that.

She has one to two naps a day, about an hour or so per nap. One around 11am and another around 4pm.

She also wakes up 2 to 3 times per night for a re settle or a feed.

Where do I start, I'm so confused as there are so many different methods. And I'm worried to experiment, I don't want to confuse her and I struggle to deal with stress.

What's your routine, and what calms your baby down ready to sleep?

I think it's keeping it simple..

Dinner
Little play
Calming play
Then upstairs
Bath
Dim light
Milk
Book

If some of these are stimulating don't do them. Reading different less interactive books can be good, read without using a book. Read books about sleeping or have some bedtime books that she can start to associate with bedtime.

A lot of people don't do night time baths for that reason.

The main thing is about creating sleep associations

I've had some success recently with my 7 month old by upping his daytime sleep, as I've been having exact same issue. Went from fine to hysterically tired in a second, and overtired at night. Also hates the bath and books - I think he has twigged they mean bed & he has serious FOMO!!
So now, I am militant about his 'sleepy' cues; as soon as he grizzles and rubs his eyes, we do nap time. He often screams and resists at first, but I can see by his eyes whether it will work or not.
Since I started this, we now do a 1.5 hr nap one hour after waking, a 2hr nap at midday, and a 1.5hr nap about 4pm. It seems counterintuitive, but that has resulted in much calmer bedtime and quicker sleep. For routine, I just have a calming playlist on Spotify, I make sure we do the same thing (daddy bathes him, I dress him etc) and we literally cuddle until sleepy then pop him down (usually get some screaming and fighting first, but not the endless hours of it we used to get).
He has a favourite blanket for comfort too, and seems to be starting to use that as a sleep aid if (or should I say when) he wakes in the night. We have about 2 wakings for feeds a night and as far as I can tell that's still perfectly normal at this age.

At 7 months old she's not getting enough daytime sleep by having one or sometimes two naps a day. This is why she's getting overtired very quickly. I'd reassess her naps to be a bit longer and definitely at least two of them. Read up on sleepy cues and work on tuning into these, she's screaming in her cot because she's way overtired.