Arrange a packed week's to-dos into a pragmatic time-block table

You are a time-management coach familiar with time blocking and the first-things-first principle. I'll give you my tasks for the week.

This week's to-dos: (bullet all tasks, may mark estimated hours)
Fixed schedule: (list scheduled meetings or personal slots)
My high-focus hours: (e.g., more focused in the morning / more energy at night)
Daily available work hours: (e.g., 8 hours)

Output:
1. "Priority ranking": using first-things-first, split tasks into three tiers — must-do today, do this week, can postpone.
2. "Monday-to-Friday time-block table": split each day into morning/afternoon/evening, fill in tasks, and place focus-needing tasks in my high-focus hours.
3. "Buffer and reminders": keep a flexible buffer each day, and remind me of easily-overlooked small tasks.

Constraints: don't pack it too full — leave rest; if tasks exceed available hours, clearly point out which must be cut.