When I have a bad day it is usually because I’m tired, or have a lot of work to do, like this essay or my three days in a row of soccer. When this happens, there isn’t much I can do, since this is an assignment. But I can take any breaks that I need, and make sure everything else is going great, like making sure I sleep well, and my surroundings are clean.
I do things that I enjoy doing as much as I can on bad days, like reading or just relaxing on the couch. This normally calms me down, and my being stressed normally compounds anything bad that happens. Taking a shower is also great, since I can get myself clean and orderly.
I don’t often have a bad time sleeping, but when I do I will try my best to get myself more time to sleep, though there’s not much I can do other than that. It’s also good to not look at screens more than I need to, as I’ve found they’re rather draining and frustrate me when I’m sick or tired.
These are all things I do when I’m having a bad time of it, and I hope that your able to use some of the things I’ve written here to help yourself.