Not everybody can understand how you feel. You’re not alone, but those who will listen requires a bit of adventure outside your circle of familiarity.
And that voice in your head that’s says they won’t care? That they don’t want to hear it? It’s totally right in that they don’t care (how could they?). The other part of the answer is that we aren’t good mind readers, so maybe putting our words into their heads isn’t a sound strategy.
What we need to do then, is deliberately draw our circle a little further so that it gets closer to where we want to be.