I have been using Photoshop since version 3 that was way back around 1995. Yes, I’m an old designer fart and still using Photoshop to this day. From the years of experience, these are some of the shortcut keys I use to speed up my workflow. While 2019 and 2018 have slightly different keymaps most will still work on the Creative Cloud edition.
LAYERS:Bring up the layers panel: F7
Move layer up: Ctrl Shift ] (Mac Command Shift ])
Move layer down: Ctrl Shift [ (Mac Command Shift [)
Merge Layers: Ctrl E (Mac Command E)
Lock Layer: Ctrl / (Mac Command /)
Rename layer and then shift down to the next layer: [...]
