I dont know ‘the’ solution but, i can tell you what has been working for me for a year now.

1. Pocket notebook (physical) for this week’s todos and random ideas

2. sticky notes for chores and mindless lists

3 whiteboard for half baked ideas

4. google keep for digital content like images, bookmarks, phone numbers, shared lists

5. Notational velocity with notes organized in Noguchi’s chronological order.

I have a minor tweak in this where i paste sticky notes within the physical notebook so i can move them around.

There is not one solution but I can tell what works for me (and is based on scientific evidence) is mindfulness, exercise, and an anti depressant (Prozac). YMMV.