Unfortunately, as a lighting designer, you're likely to experience a power outage. And not just the literal kind.
You'll have more power if you're the head lighting designer on a project, but even then you have to answer to the director or event manager. Your part in this production is a key piece, but it's only a piece.
It's not much, but you try to do what you can with the position you're in. We suggest that every time you flip a switch and bathe a set in brightness, you yell, "Let there be light!" and have it be so. It's not very powerful. But it'll feel pretty good.