I do this a lot. It's hard not to in the modern world. If you aren't constantly thinking and planning, you feel that you can be left behind and, with the materialistic values that our society embraces, you really are. This helps you to feel further and further removed from peace and joy. It is a vicious trap.
The Wisdom below is hard to attain, but refreshingly clear.
When the mind is silent, beyond weakness or non-concentration, then it can enter the world which is far beyond the mind: the Highest End.
The mind should be kept in the heart as long as it has not reached the Highest End. This is wisdom, and this is liberation. Everything else is only words.
Mind is indeed the source of bondage and also the source of liberation. To be bound to things of this world: this is bondage. To be free from them: this is liberation.
Excerpts from Maitra Upanishad: Aphorisms on the Transformation of Mind from Mr. Philip Novak, The World's Wisdom.