Why does being the person who fixes everything feel so thankless?

You can fix almost anything, and after years of being the invisible person who keeps it all running, the mastery feels strangely thankless. That is the quiet ache of essential work: people notice you only when something breaks, never during the long stretches when your skill keeps everything from breaking at all. The silence is not proof you do not matter. It is proof you do it well. Thanks was never a reliable payment for this kind of work, and waiting for it will keep you sour. Better to hold your own accurate view of your value, so you do not depend on others to hand it to you. You know what falls apart without you. Let that knowledge belong to you, whether or not anyone says it out loud. Where you can, make some of the invisible visible. Note the fires you quietly put out, mentor someone who will understand what you do, choose an environment that values the role more. And find your steadiness in the craft itself, not the applause. The work is real and needed. Let that, and your own honest sense of it, be the ground you stand on.