Optimizing for anxiety minimization and joy/meaning maximization is a pretty good alternative. I think it is a good way to be an admirable, productive person without burning yourself out to please others.
> the remedies to which we often turn may themselves be counterproductive because their function is not to alter the larger system which has yielded a state of chronic exhaustion but rather to keep us functioning within it
I suspect you are confusing this with the idea that you can always optimize one variable further than two.
I used to oscillate between highs of productivity and unpleasant lows of anxiety about not making progress. I just started my mindset switch (in progress) so we will see if I'm a generally more pleasant guy this way!