Be proud of who you are, no matter what people or your past may say about you. You are living in the NOW, the past is history.
Be forthcoming with the unique individual ideas you have to contribute to the world and make an effort to make your own contribution in another person's life to benefit some one other than yourself.
Be confident enough to accept constructive criticism and also confident enough to know which kind of criticism to reject.
Be confident enough not to rely upon the opinions of other people (good or bad) because for as many compliments you receive there will certainly be some hate coming your way from the haters. And people will bless you out of one side of their mouth and curse you out of the other.
Be confident in the way you carry yourself, however don't become arrogant and intrude on another person's insecurities especially in a way that you discredit their efforts or downplay their talents only to esteem yourself higher.
A confident person know's that to esteem other's higher than yourself is where the fulfillment of joy and dignity lies because if you truly value and respect yourself, you will have no problem making sure you help to develop confidence in another person.
A confident person extends their knowledge of how they became successful to anyone who will take the time to learn because when people discover their purpose for living, the element of confusion and chaos lessens and the world becomes a little easier to live in.
A confident person may hold their head down only for a moment or two in times of disappointment or distress. However, that self pep talk of "shoulder's back and head up" will kick in and a confident person remembers not to be led by their emotions but instead always remembers that "this too shall pass" and things will work out for the best eventually, no matter what.
Own enough confidence to know you aren't perfect, nor will you ever be, but try your best to wake up every day with the courage to be determined to live with no doubts or regrets.
A confident person knows situations in life will not always happen the way you thought they would but will roll with the punches and turn their setbacks into lessons for an even stronger comeback.
A confident person knows that it is just as important to listen and learn as it is to teach.
Be confident in the decisions you make, your character is on the line and people develop their respect for you by the way you treat them.
.....and last but not least always remember to gain your self confidence daily in learning whose you are in order to determine who you are because although people will let you down with the comments they may have to say about you, God always has nothing but positive things to say about you and if He's for you and your best interest then who cares about who is against you?? YOU shouldn't.