I once read an amazing few words from the Lubavitcher Rebbe in a letter to someone who was struggling with emotional stress:
"Being involved with Torah will of course help your mind from these distracting thoughts. By 'being involved (osek) b'Torah, I don't necessarily mean only learning from a sefer. Sitting, relaxing, breathing deep and contemplating Hashem's kindness in one's life can also be considered 'being involved (osek) b'Torah'."