When you have too many top priorities, you effectively have no top priorities.
Priority is a function of context.
It's not only a matter of when to do things, but whether or not to do them at all.
Putting first things first means organizing and executing around your most important priorities. It is living and being driven by the principles you value most, not by the agendas and forces surrounding you.
Don't prioritize your schedule, schedule those priorities.
Once you have a clear picture of your priorities - that is values, goals, and high leverage activities - organize around them.
It's better to be trusted than to be liked.
Organize and execute around priorities.
What does it matter how much we do if what we're doing isn't what matters most?