Acquire peace of mind by making the effort to become the best of which you are capable.
I always talked to my players about today. It's the only day that matters.
You can respect a person without necessarily liking that individual.
Kindness makes for much better teamwork.
Being yourself; not acting. You therefore can function near your own level of competence. Satisfy you own expectations rather than those of others.
Goals should be difficult to achieve because those achieved with little effort are seldom appreciated, give little personal satisfaction, and are often not very worthwhile. There is a price to be paid for achieving anything of significance.