I think you are being good with your 14 yo daughter.
I'm 18 yet look after my youngest sister who is 13 and an older sis who is 16 because our mum suffers massive anxiety issues, therefore I've been having to be 'Mum'.
I think 10 pm for school night bedtime is good. My 13 yo is usually in bed by 9 or 8pm if feeling extra tired. 'Belle' has always been very good with bed times, so I trust her on that.
Ecept 'bundling up' against winter cold I don't do. Instead, my partner and I will buy both my sisters merino wool vests, very finely woven meriono as it doesn't scratch or irritate the skin, but being a natural fibre is insulative, light in weight and stays warm even if becoming wet. Merino vests are not expensive if you shop around, even the same in tights keeps the warmth in without the bulk. My sisters will already have merino jumpers and hoodies of the same, the latter more expensive, but hard wearing and no way as bulky. They are happy girls and grateful to my partner and I taking care of them, and giving them choice over clothes we deem suitable.
Both sisters home school therefore have home schooling friends to messenger. They keep their bedroom doors open when nattering online. That is a rule I maintain.
The other rule is phones, phablets and laptops are not used one hour before bedtime. They give off a blue light which is responsible for wakefulness and getting to sleep. Both sisters are good about this, so I count myself most fortunate in having two susper sibs.
Julie