Maturity is learning that being able to do something and needing to do it are different questions.

Capability creates a quiet pressure to use it. If you are the one who can fix it, cover it, host it, or hold everything together, requests arrive and so does the assumption that you will. But being able to do something says nothing about whether you should, and conflating the two is how competent people end up carrying everything.

When you are asked for something, check whether you are saying yes because it needs doing by you or because you could. If the answer is only that you could, the yes is optional. Practice one no this week on that basis alone, and notice that the world holds.