Some things bouncing around in my head.
Get sunlight in the morning, even on the cloudy wintry days. Getting sunlight exposure in the morning starts the circadian rhythm. Most problems with sleep originate from how we start our day. Minimum two minutes, thirty is optimal, five is most likely. Can reduce anxiety. A little walk is even better.
Use blink rate as a lever to control attention. Attention depends on how we blink. A faster blink rate equals less attention and vice versa. So it might be helpful to use it as a lever to control attention.
Try influencing psychology using physiology. A problem of the mind cannot be solved by the mind. Use physiology. Take a walk. Use your peripheral vision to have a relaxed gaze in times of rest. Counter the hunched posture with some exercise/stretches. It can help a lot.
Take any style guide and learn how to write. Writing is a fundamental skill. The remote world requires a lot of emailing.
Try programming in rust. It’s a fun language. Stretch yourself. Learning new languages is always good fun.