Skincare - rosehip oil makes my skin dewy and fresh. Pureté Thermale waterproof eye makeup remover is good. They also do a good 3-In-1 cleanser.
Get your hair trimmed regularly perhaps invest in some styling tools like heated rollers, nice hair clips etc.
I like Mac Face and Body foundation as I love a dewy natural look.
Lash extensions look good but are expensive and IMO not worth the hassle.
If your eyebrows and thick research eyebrow threading people with multiple good reviews. If they're thin consider combo semi permanent eyebrow tattoos which combines microblading at the front of the brow (thin hair like tattoo) with a more opaque tail end. (Explained it terrible but YouTube it and definitely do your research and check to ensure they have 50+ positive reviews)
I bleach and trim my mustache.
Laser leg hair removal (not IPL) at the SK:N clinic has been awesome for me I no longer have to shave and am considering my arm pits next.
Invest in 2 nice perfumes. One for daytime one for evening. The website Fragrantica would be helpful for this.
I love a good eyelash curler and waterproof mascara. If you don't like to use waterproof mascara apply a bit of eyeshadow primer to your lashes after curling and before applying mascara and the curl should hold for longer.
Invest in some timeless "basic" pieces of clothing that can be mixed and matched such as neutral vests, jumpers, blazers.
Don't overdo the suncream vitamin D is important!
A touch of cream or liquid blusher can add a beautiful youthful glow.
Drink plenty of water and exercise!