1. Stop worrying about whether people like you or not.
2. Relax. Be calm. Life is not that serious.
3. Remember that you're enough.
4. Be in the moment. It goes by so fast and wasting it worried or angry is a shame.
5. Be more grateful for everything.
6. Spend a few moments in silence each day. Even ten minutes with no noise, no distractions, nothing to do but just breath in and out. Deep breaths.
7. Write more often. It helps.