Agree with chuck out ancient stuff. It will have deteriorated and might harbour germs.
A make up consultation is a good idea, but beware they may be expecting you to buy their products.
Clinique is a good starting point, it you don’t want to have heavy foundation, then try a BB cream, foundation mixed with moisturiser and sun protection. Getting the right skin tone colour can be tricky so advice is needed. Their mascara is lovely and doesn’t clump.
In Boots they can do a No 7 skin tone test with a little gadget, skin tone changes with age.
No7 is a good reasonably priced range as well. Also think of make up remover. Some might be too harsh for aging skin. I used to use make up remover wipes, but my skin became dry, I now use Micellor water and soft cotton pads.
Have fun with your new adventure.