Living guilt free
Guilt is information, not a problem.
Comes from the fear of letting people down.
It is a sign of what we value and that our behaviour is out of line with that value.
So if you value others opinions of you because that’s where you get your self worth from, saying “No” to them is a threat to your self so your brain creates guilt to warn you of the danger and to get you to change your behaviour to fit in and belong.
In this modern world this leads to being over committed and overwhelmed.