If you're using any mind/mood-altering substances, at least evaluate what role they might be playing in your ability to focus. I've found stimulants, including

If you're using any mind/mood-altering substances, at least evaluate what role they might be playing in your ability to focus. I've found stimulants, including caffeine, to have an impact. Also recreational drugs like MDMA can have serious derimental effects in areas of focus, memory, and cognition.