I am an INTJ on the Meyers Briggs assessments, and I like to be stimulated in productive activity and for a long time I found it difficult to just sit in silence and solitude. I do enjoy my alone time. I re-energize by spending time alone but not necessarily just being quiet.
I think it is so important in this age of technology to step back for a few minutes each day and just sit in the silence. Whether you begin your day or end or day in this way, it will allow the stresses of the day and the pent up blockage of energy to be released. It is in the silence that God speaks. We have to be quiet and listen, stop nattering about what our issues are for the day and really listen and breathe in what He is trying to show us in His wisdom. We were not created to do life alone but instead the indwelling of HIs presence in our lives allows us to adsorb His peace, His compassion, and purposeful living that can only come from a Christ centred life.
When we slow down our breathing, focus on His goodness and take on an attitude of gratitude our outlook on the day ahead or the day past will definitely change. It will not matter if your "to do" list does not get completed today. I am sure if you set aside time to revitalize your self then the tasks will be completed in a sufficient and timely manner.
I challenge you to take time to be silent today and enjoy it. LIfe is good only if you can savour His presence as the guiding light for your life.