There was little information around when I was younger, relating to looking after your skin. I remember using Clearasil for spots - but that is about it.
Sun Protection to me was applied on my face, when abroad, at temperatures over 36 degrees.
All of a sudden, at a certain age, you start to look in the mirror and wonder who is looking back at you. I had a facial and the beautician was horrified that I didn't have a skin routine, particularly at night. Not being the sort to turn to fillers or botox I started to pay attention to my skin. Luckily I could advise my own children who won't go out the door in the morning without their SP50 on.
What I would recommend - drink water to plump out your skin and keep it clear. I have difficulty with this, particularly in the winter - but enjoy sparkling water
Think about how many pillows you use - someone told me that this can effect your neck.
Look after your decolletage in the same way as you do your face and neck
Look after your hands - don't forget SPF on them too.
Face mask once a week or more if needed - I sleep in mine overnigh.
SPF 25 plus depending on the temperature - all weathers every day.
Take time to cleanse your face at night - replenish it and allow it to recover with a good nights sleep.
Exfoliate your face and body once a week and moisturise your body every day.