For most of us, life always seems to get busier and busier each day, and while we always try to find the time to do things, there doesn't ever seem to be enough time in the day to 'do it all'.
As, Douglas J Soccio mentions in his quote:
"Experience suggests that though we cannot do everything, we can always do something"
This is true, as we can't specialise and be experts in everything so we must decide on what we would like to spend most of our time working on improving and expanding our skills and knowledge in, i.e. while we can't do everything we can always try to do something!
Understanding the limited time that I have, I personally have been looking to do things that I've always wanted to do, as I believe there's more to life than what the society that we live in has been telling us to do, i.e. the typical, we must go to school, get a job, get married, have a family, accumulate this and that, etc. Whilst these are indeed things that we should look at achieving in one way or another, I'm one to believe that we should also get out there and try make a difference in this world, no matter how small it may be or appear - as every little bit counts!
As one of my favourite quotes from the ancient philosopher Cicero mentions: 'If we do only what is required of us we are slaves, the moment we do more we are free.'
So whilst you can and inevitability carry out the activities and duties that society directly or indirectly encourages us to do, there will always be something else that one can do, i.e. 'to do more'. For me that is understanding my skills and knowledge and how I can use that to help those around me. As not everything is as fortunate and priviledged as ourselves in this world. I believe that we are quite lucky with the lifestyle we have and should be always endeavouring to do what we can for others - particularly whilst capitalising on the skill sets that society has helped us to develop.
Keeping that in mind, I would encourage you to focus on the things you love and enjoy, whilst also finding a way to encourage and assist in the development and improving the lives of others. Through that means, you will find that you are free, as you are truly doing more than what is required of us and always do something!