How do I find worth in work no one sees?

You have found something a lot of people spend their whole lives chasing, a sense of worth that does not wait on anyone else's approval. Your work matters to you because you know what it is for. That is a quiet kind of strength, and it is real. This does not mean you stop being human. There will still be days when a little acknowledgment would land sweetly. That is fine. The difference is that you no longer need it to keep going. Your steadiness comes from inside, where no one can reach in and turn it off. Keep the practice alive by naming, now and then, why the work is worth doing. Not for a review, just for yourself. That simple honesty is what keeps the recognition yours. You built it. Guard it.