It will all still be here in a month or two's time. You'll miss a few food posts and some top ten lists, but family and friends are where your focus should be.

Take vitamin d, exercise and chat to your Doctor if you are comfortable doing so.

Your sleep is all over the place because your serotonin levels are low. Melatonin which regulates sleep cycles is made from serotonin.

https://sites.tufts.edu/sleep/biochemical-pathway/

You can help your body produce melatonin by turning off the laptop and the lights early. So again it is fine to take an extended break from the computer every now and then even if you have responsibilities, your health requires it.