You don't have to let yourself be terrorized by other people's expectations of you.
(Sue Patton Thoele)

Look at every thing you do during a typical week plus all those extra tasks you add to the mix.
I know it's hard to swallow, but you choose to do them all.
It's time to think about how you made that choice.
Whose idea was it in the first place - your parents, friends, teachers, spouse, or somebody else? Did the anonymous "they" recommend it? Whose choice is it to stop? If you think of each activity as adding something to your life, what is the something you receive? How much joy do you derive from the activity? By stopping whatever it is that brings you little in return, you could make space to add what you really want.
Examples: Stop attending a weekly meeting that has become merely an unproductive habit; use the time for more purposeful reading and writing.
When you find yourself just putting in hours at work, go for a walk or do some other physical exercise to replace "sitting around and getting nothing accomplished.
" This might be the change of pace you need to get energized and creative.
Say "no" to doing errands that really inconvenience you.
Hire someone else - or barter - to perform those tasks.
Use your energy to focus on what you do best and what will have the most significant positive impact.
Another suggestion is to let certain things go.
Surprise! You may be doing some things that simply do not need to be done.
And - you may not miss them when you stop.
Neither will anyone else.

If you examine your responsibilities more closely, you will discover it is not the universe that has piled too much on your plate.
It is you.
(Alan Cohen)