>>457yeah, I'm the same way. it's why I get kind of terrified whenever the time comes to get a job again. it's just anxiety or something but it's one thing to know you're pretty much just more stressed than you're used to being, and another thing to actually be able to chill out.
as said before it's honestly best to just try to live in the moment and to remember to enjoy the little things around you. you do get used to the newly raised stress level over time, at least in my experience. I tend to watch more comfy anime or replay games I've already beaten if I can't actually pull myself together enough to get into anything new and exciting- do anything you can to entertain your restlessness as long as it's fun or feels like more than just kind of killing time until it's back to work. it helps having stuff within reach like a hobby thing or a handheld console so you aren't just doomscrolling on your phone after work. your phone is probably your biggest enemy right now if it's maybe unintentionally making you feel like you're losing time to it or something. maybe read some manga or pirate a bunch of books if you find yourself stuck to it? manga tends to turn into a work break thing if I'm not talking to coworkers which also helps blend things together in a way.
TLDR; afterwork restlessness sucks but try hopping into any remotely fun or interesting thing so you aren't just scrolling, it doesn't have to be deep. it'll keep you from getting burned out over time.
also, remember to get actual sleep and try not to do the whole "revenge insomnia" thing or whatever, it'll make you feel worse over time if you do. rooting for you anon