Henry,

You said "I wrote a short list of the symptoms I need to focus on (brain tiredness, light sensitivity, depression, attention span, physical pain) and I've tried to not constantly assess every other part of my life."

What do you mean by focus on these symptoms ?

It is better to not focus on symptoms but instead just accept that they will manifest from time to time. If you feel mentally tired, slow down and take a break. Move to a different environment to change the stimulation.