I don’t have those kinds of problems with change. When I was a little older than you I inherited a new (well old) bed and I had to move the bookcases to make room for it, so my room ended up looking very different. My bed had been head towards south, feet towards north, with the position of the other one it was head towards east, feet facing west and against another wall. The moving of those 3 furniture made my room look very different, but I liked the change a lot. It also gave me a sort of cave in the corner where the bed and bookcase met, so I had a closed up space within my room. I thought it was very cool. It looked a little unfamiliar but I didn’t experience any home sickness or was upset like you describe.
Unfortunately the bed was poor quality and broke, so I had to replace it with my old bed. My old bed was better to sleep in, but due to its dimensions I had to change the room back to how it was, and I missed the corner space I had gotten.
Some changes can be harder to adjust to, but overall I do pretty well with changes. And I‘ve always welcomed some, like vacations and holidays.