I’m mid 40s and shorter/heavier than you - 5/6, ten stone. I don’t have Botox or fillers, but do have a good skin-care routine, and I have quite a definite “style” in terms of hair and makeup - my hair’s in a Louise Brooks type bob, and I always wear red lipstick. I usually have my hair cut every five weeks, so right now it is a lot longer than I would like, but because it’s a good cut it looks okay. (I have trimmed the fringe though.)
What I think is important is to know what to spend money on. For example, I buy cheap t-shirts, but pay more for jeans and trousers to get as good a fit as possible. I know Cos trousers are best for me, and Whistles and Levi’s for jeans. I spend more on winter clothes than summer clothes, and I always have decent leather shoes/boots/bags. I know what suits me, even if other people don’t like it. Things like frills and fussy prints are not my cup of tea and don’t work (although I love them on other people) so I steer clear of those. I have a large number of grey crew necked jumpers, and black polo necks, as winter staples - very boring, but very “me”. I’m quite pear-shaped, but if I was more apple I would probably spend more on tops. I always tuck things in, or have them end at the waistband, but I have friends who carry more weight on the tummy and look fab in more drape-y things. They tend to have better bums/legs!
I (usually) get my eyebrows waxed/threaded every three weeks, and do my own nails a couple of times a week. Again, usually, I get an airflow polish on my teeth every three or six months, regular checkups. I don’t go to the gym but - ha, usually again - do about 18,000 steps on a regular working day - I am aiming for 10,000 just now but commuting to my kitchen doesn’t work quite as well.
I don’t even own heels, they don’t work with my style, but I have a large trainer collection, and look after shoes/boots well in terms of cleaning/cobbler etc. (Also, I know Mumsnet hates this, but I iron everything!)