As Darwin discovered, competition is important for the survival of our species. It may not be the competition with others but the competition within ourselves.
You were born a winner, a warrior, one who defied the odds by surviving the most gruesome battle of them all - the race to the egg. And now that you are a giant, why do you even doubt victory against smaller numbers and wider margins? The only walls that exist are those you have placed in your mind. And whatever obstacles you conceive, exist only because you have forgotten what you have already achieved.
If you hold a candle close to you, its flame rises. And if you hold it away from you, its flame shrinks. The same way you hold a candle close to you, keep all your plans, aspirations, projects, and dreams close to you too. Do not share your plans or goals until you complete them, because as you hold your candle away from you β envy, jealousy, and resentment may put out your flame before it grows.