Keep the list short
A short list forces trade-offs. Six items is a historical convention, not a magic number.
Put the list in order
Decide the sequence before work begins so you do not repeatedly re-negotiate priority.
Carry forward deliberately
If an item survives many days, either schedule it, reduce it, clarify it or remove it.
This site discusses planning and work habits, not medical treatment or diagnosis. Persistent attention, sleep, stress, or health concerns deserve support from a qualified adult or health professional rather than a productivity hack.