You are not your job. Your job is to find a better job.

With regard to the market value of skills: Good + Good + Good > Excellent. It is more valuable to stack skills than to be exceptional in one thing. Diminishing returns on investing additional time. You can get good in two new things faster than moving an excellent skill forward to the next level. The more skills you have the more parameters you're aware of. You may develop and have many peers who are excellent in an in demand skill. Each of them see the same set of parameters from that field to answer business questions. If you add another related skill that those peers don't have, you have an additional perspective that can see more parameters than those peers. Suddenly you can see around economic corners. Solve optimal solutions those peers couldn't see, because you have a broader set of tools. This is the argument for skill stacking.

Put the two together into one system. Your job is to find a better job. The purpose of where you currently work is to teach you a new skill. Once you are good on those skills, the next job is better if it teaches you a new skill and helps you get good in that too. You now have two Good + Good skills that help you land the next even better job. You pick the job that gives you Good + Good + Good. This is a ratchet that moves you up the market value ladder.

Another layer of that system I'll leave to you to think through is at each place you work add contacts to your social network. Plan to exit on good terms that keep doors open. Whether you personally like a person or not there's no reason to close the door. The world is large enough for everyone to succeed. Keep the network open and you can periodically catch up with them. Whenever you become aware of a job opening feed it out to your network. You want to build reciprocation where they reach out to you, too. Another ratchet to pull one another up the market value ladder.

Capping a long-term system are observations of the retired and the surprise arrival of early retirement wealth. You may have watched a family member retire and struggle with motivation and meaning afterward. It's not uncommon for founders of successful tech companies to experience a depression and crisis of meaning afterwards. That empty space is where the out of reach goal of 'someday' used to be. The secret of motivation is to have a system that always drops a new goal into that space as soon as you complete it. You can use the storytelling of 'Your job is to find a better job' to set up ideas and meaningful projects awaiting no matter your resources. The most fulfilled retired people I've met quit their work but continued working on hobbies and activities. Spending full time on outdoor sports, building household projects, picked up their musician career again. Had a personal business they shifted over to and never really stopped working. Only steered it to whatever they felt more fulfilling. They got a better job.