@Shazafied oh no! My DC are older now thankfully, though that just brings fresh concerns, but theoretically more sleep, when my insomnia isn't making itself known anyway.
OK, so a good place to start with retinoids is The Ordinary Granactive 2% retinoid in squalane. Its £7.80, and should last quite a long time as you only need a little at a time.
You don't plaster retinoids on unless you want your face to look dry and scaly like a dinosaur's butt.
There are many other retinoids available, but this is one of the cheapest and its a genuinely excellent product, you wouldn't get better by paying more.
When you start using it, start off twice per week in the evenings, then after a couple of weeks build up to three times per week, then every other day. If your skin can tolerate it you could use it every day eventually, but there's not a huge amount of need to, it works as well using it every other day, and that way you can use the alternate day to nourish your skin too.
There is the option of prescription strength retin-A, which I use, and which is the most miraculous substance in the known universe. Fact.
Joking aside, it is a miracle worker, it was originally developed as an acne medicine, and over the decades of studies of was discovered to have remarkable anti-ageing effects too. So not only does it make your skin clear, even toned and flawless, it also helps prevent and to a degree reduces existing wrinkles.
Over the counter retinoids do the same, but they're nowhere near as strong, still very effective though. If you're in the UK and want to go the prescription strength route, you'll need to order it online, or from a Spanish or Portuguese pharmacy (Andorra Pharmacy is one of the good ones I think?) or if someone you know is visiting either country, ask if they'll grab you some from a pharmacy as its over the counter there. The brand name is Retrides. If you do go this route, start with the 0.025% concentration, its vastly stronger than over the counter retinoids, and for anti-ageing you don't really need to go for 0.05 or 0.1% strength.
In studies all the retin-A concentration's ended up having the same results long term, you just get there a bit quicker with the higher strengths, but have more side effects. I.e. dinosaur's butt face.
Now, retint and retin-A are very drying, so you need to be using gentle and hydrating face cleansers and toners - none of that scrub your eyeballs out St Ives stuff, or you end up with dinosaur's butt face
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When using retinoids or retin-A, drop all exfoliators, hopefully the only exfoliators going anywhere near your face are chemical ones, such as glycolic acid, but you need to drop them for quite a long while whilst your skin syncs up with the retinoid/retin-A. If you are using an physical exfoliators near your face (looking at you St Ives) relegade it to your feet, and possible your legs. Physical exfoliators are not good for your skin and whilst they temporarily mame your skin look perky, they can cause microtears and damage long term.
Back to retinoids/retin-A. You must use a proper facial sunscreen with them as they do make your skin more sensitive to the sun, plus you're just undoing their benefits if you don't. I love Canmake Mermaid Gel as its cheap, non drying, non greasy and feels great, plus it's brilliant under makeup, Biore Watery Essence is also very good, and there any quite a few others you can get on Amazon which are good. The La Roche Posay one is great, but more expensive and I think the Canmake is better to be honest.
Oh ffs now the dog is moaning
. Will finish posting in a second.