Apologize once, mean it, then stop apologizing for existing.

A real apology is a single, specific act. Naming what you did, owning it, and changing something is the whole of it, and repeating it afterwards shifts the weight back onto the other person to reassure you. Past a certain point sorry stops being about the thing that happened and becomes a general apology for taking up space.

Say it once, plainly, without explaining yourself for ten minutes. Then let your behavior carry the rest. Notice this week how often the word comes out when nothing has happened, and try replacing it with thank you.