1. It diverts your mind for a while

Travelling will divert your mind from the stressful subject that is bothering you currently. Getting to a destination will give you enough to think about and act on. Therefore, it’s a good diversion.
2. You will observe people and learn from them

During your journey, you will meet many interesting people who have problems which are difficult than yours. Paying keen attention to them would make you realise how boldly they take on their problems, and that will motivate you to find your way.