re: lack of variety
You have identified the problem. now you need to do something about it.
What about a pet. Dogs love being taken for a walk. Cats just think of themselves and crap everywhere.
What about growing some veggies/herbs? Even a windowsill can provide a lot of variety.
Go out for a walk each and every day.
Staring at the screen is mentally exhausting so limit your screen time. Stretch every hour. Question the people calling the meeting. Is it really needed? If you don't contribute to them then they are a waste of time.
Have something else to do in your life and expecially something non IT related. I've rebuilt a 1963 Triumph T120 this lockdown. Just an hour or so each day was more than enough to take my mind off work.
I got it on the road last week. Fantastic. I have a 1954 Vincent Black Shadow waiting for a top end overhaul. Thankfully, I have a well insulated garage/workshop in which to while away the hours.