5 year old bedtime

[justlliloleme]

I'm sure this question has been asked over & over again. But I'm really at the end of my tether with my 5 year old. She's never been good at going to bed but recently she's been getting worse.
I feel like I've tried everything, we have a bed time routine, bath, book, warm milk/ camomile tea/ no drink (tried them all), soothing music/ kids relaxation cd's/ science, I've tried staying with her till she goes to sleep, staying with her for a little bit, leaving her to fall asleep. This is all over 5 years.
Tonight she was really tired, which is when she is worse, but she had a bath, bed , goodnight kiss & cuddle & then I put her music on & tickled her back. Then she moves to the otherside of the bed where I can't reach & starts kicking & insisting I tickle her, I tell her calmly that I was tickling & I can't reach her & if she wants tickling then she needs to move back, otherwise I will leave the room, it's her choice. She doesn't move, so I leave the room & refuse to go back. We then have 2 hours of screaming, crying, banging around, 'I need the toilet' 'I need a drink' ' I need a tissue'. Hopefully you get the gist.
Where are we going wrong, I can't help but feel I'm doing something dreadfully wrong with her.
I have a 16 who I never had this problem with, how can I be getting it so wrong with this one.
Sorry for the rant but I just feel so helpless.

*i meant silence not science ??

That all sounds like awful hard work. Has she ever gone to sleep on her own? Have you tried not bothering with bath when she I really knackered? My DD1 who is 6 is a nightmare to get into bed if she is really tired. Does she have a cuddly toy or comforter? Have you tried star charts with rewards for going to bed and settling down to sleep?

Sorry I don't have any answers and if you've tried all these.

Thanks for the reply soup maker.
Yes I've tried all that, she does get over tired & that's usually the problem. I think at 5 she should be getting better, but she's not.
Have started yet another reward chart tonight with the reward being a new book (she's really into the Magic Ballerina & is desperate for the next book). She wasn't great going down tonight but a million times better than last night.
I was just so frustrated last night I think I just needed to let off some steam - thanks for listening/reading x

What time is she actually getting into bed after the bath? What different times have you tried? You could move everything earlier (as much as you can) and then even if you still get 2 hours of messing around, she'll be asleep earlier.