Your parents splitting up rewrote the house, not your whole story.

A separation changes the logistics of daily life in ways that are impossible to ignore. Where your things are, who is where on which night, what the evenings sound like. All of that is genuinely different, and it is fair to grieve it. What has not been settled by it is who you turn out to be, what you are good at, or how your own life goes later.

Hold on to a few things that stay yours across both places. A routine, a friend, a practice, a walk you always take. Continuity helps more here than most advice does.