Good mental habits and a positive view of life allow mental strength to develop. You can grow your mental strength just as you can grow your physical strength, one day at a time. There are some things that mentally strong people just don’t do, such as: Engaging in negative self-talk which drains your spirit and your confidence; Repeating mistakes -- mistakes quickly become habits -- review your mistakes each day and vow not to repeat them (try something else): Avoiding responsibility -Mentally strong people take on responsibilities for their own decisions. Mentally weak people blame others for their wrong decisions. See more..."