So you’re overwhelmed. There’s way too much to do. There are too many things you are involved in..

The common advice of all the ‘Get-it-done‘ Guru’s is ‘Say NO’ to all tasks you don’t want/you don’t need to do/ you know you can’t complete.
Saying ‘No’ is easier said than done.
What if all the people you are saying ‘No’ to are your bosses/superiors at work?
You stand much greater risk pissing them off and trying your productivity tips in your inevitable job hunt after you’ve been fired.
If you are not near the top, I would recommend a ‘I am in trouble. Please help me prioritize’ approach. Let all those bosses who you are accountable to know that you’re being squeezed and need help prioritizing. And unless you’re being managed by a really bad boss (let’s face it, there are a few of those out there), you’ll generally get help.
Best of luck with that!
PS: If you don’t, that’s what you’ll term as a ‘life experience’ and learn lots from it. If that happens, do just send me a note on rohan [at] rohanrajiv [dot] com and I’ll be happy to share it on this blog! ;)
