Failing to plan means planning to fail. What are your goals?
Only undertake what you can do in an excellent fashion. There are no prizes for average performance.
Get the facts. Ask questions and listen intently to the answers before responding.
You can NEVER rise higher than your expectations of yourself. Expect the BEST!
The one human quality that must be developed is self discipline for success. The will power to force yourself to do what you know you should do when you should do it, whether you like it or not, whether you feel like it or not. Success is tons of discipline.
Avoid negative people at all costs. They are the greatest destroyers of self-confidence and self-esteem.