We've heard the phrase many times, "fake it till you make it", and to me, that sounds an awful lot like lying. Sure, lots of people do it. But you're bigger.
Just be real. Be the person who cares about things you truly care about. go out and make stuff happen. Build solutions. Keep making them. With the tools you have.
Nobody cares how fancy the shoes you're wearing as you help them fix their computer, or their resume, or their employee engagement program.
Just keep building the things you care about building. This is what makes you so useful and compelling. Whatever "IT" is, keep making "IT". Make "IT" for as long as you care about "IT". It's after you quit caring that you have to start faking. The moment "IT" starts to feel fake is the moment you run.