God is the greatest psychiatrist in the whole universe. He knows and understands everything about us, our problems, our needs, our desires, etc. After Holy Communion, I go before the Lord letting him see everything that's in my heart. If there's something that bothers me, I simply open myself up to him without reservation (this may require some effort on my part as I search and reflect hard). The Lord now will help me see deep down exactly what is bugging me. It's like God holding up a mirror and I see the interior of my heart in it. Often what we think the cause is is not necessarily the true one, for we are complicated creatures. Once I see clearly what made me lose my peace, I become instantly relieved. If healing is needed, the Lord will do just that then. The resulting feeling is exhilaration. Truly, self-understanding is the key to freedom of the heart.