That saying "are you upset for the reason that you think you are?"
Why?
We get triggered by similar incidents, reminder of past life hurts. Till you heal them, you will get triggered over and over , by different people yet similar events.
When we mull over hurts, events, we then chain us to them. They become the "Story" of me. You carry this with you, in all interactions.
One way to let the chains go, is to forgive. To forgive you, that you got hurt, forgive the situation and them. Else you relive this, over and over.
Then build up these 2 life tools.
A Your worth of self
B. Your self love
That is why meditation helps all those thoughts you have, to notice when you drain you, this over and over replay, has you be stagnant. Feel like, a stuck drain. Your peace of mind will happen with mind silence that meditation can bring.
You are the key to unlock your inner peace..