"If you're grateful it's hard to be grumpy" is a quote that helps me to stay focused on the good and positive things in life - especially these days with very limited in-person communication, all kinds of restrictions, polarisation, social isolation, and higher rate of burn-out and various global challenges.
Yes, there are reasons to be concerned and grumpy, but it is important to stay positive since there are many things to be grateful for. Of course my reasons differ from those of others, but I am grateful for my family (3 adult children and a great wife), awesome friends, freedom, relationship with God, and health.
Also, the ability to exercise outdoors, walk the dog, play games with kids, enjoy a nice BBQ, a great motor ride and working for Nutanix, with a focus on End User Computing, are reasons for me personally to be grateful. "If you love what you do you never have to work a day in your life" applies to me. By the way, a great book to read is "Factfulness: Ten Reasons We're Wrong About the World--and Why Things Are Better Than You Think."