Is it obvious? I forget many things but the rarely ever the most urgent/important tasks i have to do right now. I need a calendar and checklists for sure but w

Is it obvious? I forget many things but the rarely ever the most urgent/important tasks i have to do right now. I need a calendar and checklists for sure but when i write to do lists they inevitably end up being things i'd never forget mixed in with a clutter of tasks that were never really important enough to get around to doing.