All the answers are very useful.
You will definitely look (and feel) transformed once you go back to having proper sleep and you’ll look amazing on that alonein a couple of years time.
I find drinking warm (not hot) water makes me drink more of it.
There isn’t much point in jumping on to using gadgets until your sort out a simple and gentle routine to start with.
Facial cleaning brushes can be too harsh for most people. Lumea, as suggested, is a good option when you feel you want to invest a bit more but I wouldn’t say it’s totally transformative (I’ve been using it regularly for about 4 years and not sure I’d miss it or see a negative result if I stopped).
Facial rollers come in different varieties.
The jade or quartz type where a stone is attached to a handle and you follow a massage system. Most are not the real thing probably because they simply are too inexpensive to be made of real Jade. However, they feel nice and cool and the massage is supposed to help with lymphatic drainage (good to keep puffiness at bay) and smooth the contours of the face and some other ancient Chinese based philosophy. There is another tool on a similar idea, again widely available on the cheap which is like a flat stone, jade mostly, a leaf shape almost, with rounded edges that follow the contours of the face and you can use it to massage your face same principle as before, called something like Gua Shi or similar. I use both, mine weren’t cheap but I bet the affordable versions do the same job, and I’d say the roller does help make the face look more rested, the stone doesn’t appear to make any difference. Mine had a DVD on how to use but there are plenty of tutorials online.
Similar to jade rollers you get a sort of spiky shaped stone on the roller instead of smooth, I suppose that would increase blood circulation but I never tried.
Then you have dermarollers for microneedling which is a handle with a barrel at the top covered in sharp tiny needles. They come in different sizes and different price points. You’d need to learn how to use these at home and be super diligent about disinfecting everything. The principle is that the needles create tiny holes in the skin which helps application of further face serums to get in to the skin deeper (debatable as the serum itself might not do anything to start with, plus there’s a risk of infection). The damage caused to the skin by the needles encourages skin to heal and increase local collagen production. Also used on the body. Make of it what you will, but it’s more of an advanced undertaking.
Cleansing cloths. Apparently Primark do a micro fibre cloth at £1 which is brilliant at cleansing even with just water. I haven’t tried it. Cheapest face washcloth I’ve seen are at Wilko for 50p if I remember correctly. Natural silk is very good also but I never got around to making some cloths myself and haven’t seen any yet. I might recycle an item of silk clothing one day and make it into squares for this very purpose. You can use these cloths to cleanse, obviously, but also for alternate cold and hot face wash which is very good for the skin and to wash of face masks.
Cleansing. Micellar water is drying so you should wash your skin after using it. Double cleansing usually assumes the use of 2 different cleansers, 1 to take makeup off and 1 for a further deeper clean. Not to everyone’s taste or time. Use whatever cleanser you like, there are lots of formulations (liquid, foam, lotion, balm, solid bar), start cheap and if you don’t have negative reactions, stick with it.
Toners. Traditionally more intended to hydrate but nowadays there are a lot available which contain acids for exfoliation (and other ingredients like Vit C or retinol which is pointless). If you choose to use a toner with glycolic acid, you should only use it once a week and not on the same day as using a retinol based product or Vit C as it can cause irritation. Rose water is just fine for everyday.
Acids. There are quite a few for different things (to calm redness, to gently exfoliate, antibacterial action, heavy exfoliation, hydration etc). They are often included in toners, serums and creams. I think serums are the most potent.
Vitamin C will help your skin look better but start on a low dose in a serum.
Retinols are a chapter on their own, there are lots of threads with great advice on here if you want to start.
Masks. I love them. Widely available and I can’t recommend one in particular, and the sheet masks are a clever invention. GlamGlow is rubbish though. Apart from some French algae based powder ones, I make my own. You can get basic cellulose dry sheet masks on Amazon in a big pack and you can imbibe these with whatever watery consistence mask you make, place on face then cover with one of those silicone flexible masks that attaches with loops behind the ears. Very useful because you can get on with other jobs but you must never wear these with kids around (!). Most masks dry on the face so you don’t always need a sheet. I find masks give better results than creams but they are a bit of a commitment to make and to use.
Start with a basic moisturiser and gradually venture to further ingredients.
You can’t beat a facial massage - again, very good suggestions around here on where to find resources. Get a simple oil like almond or jojoba and use your hands. The oils are inexpensive and your hands are free. In time, you can move towards a more complex oil but it’s the massage itself that makes most of the difference, not the oil.
You really do not need to spend a lot of money. There are good products mentioned above, there’s also a small range at Waitrose called Pure which is affordable and usually on sale and even though most products are not transformative, on the plus side, they are gentle and shouldn’t irritate.