All journey’s start with the one basic concept: what does my protagonist want?
Is it true love? To defeat a force of great evil? Alternatively, is it world domination or revenge? Survival in a fight to the death, or to be recognised by their peers as a good human being. It doesn’t matter. What does matter, is that what your character wants isn’t what they need.
Confused? That’s okay. Your character is, too. But that’s what the story is all about discovering!