The first person who believed in you probably did it before you’d earned it. Do that for someone else.

Belief in advance is what creates the evidence, not the other way round. Somebody decided you were worth time or a chance before you had anything to show, and whatever they could point to afterwards exists only because they went first. That is strange arithmetic and it is how nearly everybody starts. Nobody earns the opportunity that lets them earn things.

So be early for somebody else, because being early is where the whole value sits. Pick the person who is not yet obviously good and give them the shift, the invitation, the honest encouragement. Name the specific thing you can see in them before anybody else can.