You've moved the goalpost multiple times. Are you concerned about the OP's ability to command top dollar for their current talents or that they have a job at all (you've expressed both), or the OP's feeling of fulfillment/motivation in what they do?

I go back to what I said before. If your fulfillment in life is centered around work, you need to re-evaluate. If the OP has no motivation to improve themselves for the sake of improving themselves, that's an OP problem that existed WAY before LLMs. Whether it's weightlifting, programing, or basketweaving, the OP needs to find some benchmarks for life that come from self motivation.

That being said, the OP will continue to be employed. Rather than miring in the existential crisis of "not being able to continue operating in the manner they do today", the OP needs to adapt and align their skills with this new tool. LLMs are tools.