Great individuals make great successes out of failure.
Our limitations and success will be based, most often, on your own expectations for ourselves. What the mind dwells upon, the body acts upon.
Optimism boosts your energy and focuses your sights on reaching your goals, rather than wallowing in your setbacks.
Chase your passion, not your pension.
If you are not doing what your passion is, you are putting it on layaway.
When you make a mistake or get ridiculed or rejected, look at mistakes as learning experiences, and ridicule as ignorance. Look at rejection as part of one performance, not as a turn down of the performer.