How does your Non-24 function? Is it completely unpredictable, or would you be able to maintain a regular N-hour cycle for some value of N? Best if N could be something like 33.6, 28, 21, 18.7, because then you could maintain a week cycle, which would allow you a part-time job. But any predictable schedule allows you to plan things.

If your sunglasses are not very helpful in day, could you try some darker sunglasses? You could have a set of sunglasses with different levels of darkness, for inside and outside.

As a general strategy, I would suggest this: If you cannot find one perfect solution, focus on small improvements you can do.

It is generally good to have a "big picture", so your actions are coordinated towards a goal. But even if you don't have it, don't stop. If you do nothing, you receive no information, and that does not make your future planning any better. Even doing random (non-dangerous) things is good, because you gain information.

For example, I don't think that buying darker sunglasses is going to fix all your problems. But still, if darker sunglasses would be an improvement, you should get them. It is better than waiting until you find a pefect strategy for everything.