Mentally strong people: the 13 things they avoid: http://www.forbes.com/sites/cherylsnappconner/2013/11/18/mentally-strong-people-the-13-things-they-avoid/ By Amy Morin 1. Waste time feeling sorry for themselves; 2. Give away their power; 3. Shy away from change; 4. Waste energy on things they can't control 5. Worry about pleasing others; 6. Fear taking calculated risks 7. Dwell on the past; 8. Make the same mistake over and over; 9. Resent other people's success 10. give up after failure; 11. Fear alone time; 12. Feel the world owes them anything. 13. Expect immediate results