I have oily skin; is it okay to use everything from the basics to the cream and ampoule?

I have oily skin.

Lately, my skin seems to be sagging. Honestly, I know it's probably due to my age, but my skin isn't as good as it used to be.

I usually only do basic skincare because I have oily skin, so it gets greasy quickly and produces a lot of sebum.

But now that I'm slathering on cream, ampoule, and even eye cream, I'm worried about sebum production again.

I'm not sure if it's okay to do all the skincare for my oily skin...

It feels sticky and greasy when I wake up.

How does everyone manage oily skin?