I've created a study environment for focus by updating the room from princess pink walls...it was waaaay past time for that color to go, by several years. I just hate to paint.
We have a separate room with a door for her. I had already set up a desk area, a full-sized monitor instead of her using a tablet, phone, or small laptop screen. I ordered an electronics organizer and charging station. I bought two new pair of earbuds, one for backpack and one for home. I am clearing a bookcase for storage so she can keep everything related to school in that room.
I already have most school supplies leftover from years past. I did buy more printer ink and paper, so if it's easier for her to have it on paper than the monitor, she can print it.