Tips for getting started on smoothing/anti-aging

I (40yoF) am looking to get started on doing the bare minimum for my skin. Blessed with good genes (aka nice fat face) but have aged rapidly in the last 3 years during a period of high life stress. My "routine" is just washing with a tiny bit of whatever soap I'm using in the shower and then putting on some SPF. I'm not too worried about wrinkles, just general roughness/unevenness, big pores, and a little discoloration.

My skin is pretty sensitive so I don't want anything super harsh, scented, or a bunch of fragrances. Maybe some basic HA and/or retinol? I don't mind paying more for pure products. I read the wiki over at the big sub and just got overwhelmed. Any advice?