Whatever you may be feeling or thinking, just know that it to shall pass. Life is in constant change whether we like it or not. So I feel the choice we can make is to ride the waves of life and make sure not to get two attached to any one wave, because then you might miss the next one !
Acknowledge your thoughts and they shall become your friend ! Take a couple of minutes throughout your day and spend some time in thought. They can do you no harm unless you allow them to control your actions in a negative way. Learn to empower yourself !