"If you believe in yourself and have the courage, the determination, the dedication, the competitive drive and if you are willing to sacrifice the little things in life and pay the price for the things that are worthwhile, it can be done."
Vince Lombardi
"People become really quite remarkable when they start thinking that they can do things. When they believe in themselves they have the first secret of success.
Norman Vincent Peale
If you have self-confidence and believe in yourself, the sky is the limit. You can achieve what you want to achieve.
Having courage is important since we can not get bogged down in the what ifs and fear of failure. That mentality is self defeating and in itself can lead to failure just because of the attitude.
Why is determination important? It will prevent you from giving up before you achieve your goal.
If you believe what you are trying to achieve is worth failure, you must promise yourself to go for it and make a sacrifice.