My noob recommendations:
*Install Tweaks and Extension Manager
*Install nautilus-admin so you have a right click option to open files and folders as admin (root)
sudo apt install nautilus-admin
*Install Clipboard Indicator extension
*Install Shell Restarter extension to quickly fix most UI glitches
*Turn on Workspace Indicator extension to quickly scroll thru workspaces
*Install Pinta for light photo editing
*Install Timeshift
Staying with Chrome?
*Install the Linux Scroll Speed Fix extension
*Turn off auto login or Chrome will ask you to login after a start/restart
Have a multi button mouse?
*Install Input Remapper. d/l the deb file and double click it.
Protips:
The quickest way to find/do anything is to hit the Super (Windows) key and type the first two letters. You can move the Super key to the right Windows key in Tweaks or make R Ctrl do R Windows if you don't have one. Or use Input Remapper to make any key do anything you want.
If you are using an older computer, I highly recommend cleaning the memory and slots with 91% alcohol. I found this necessary to avoid memory glitches on two desktops.