When you inevitably experience triumph and success in your life, it’s so tempting for it to go to your head. This can manifest in very obvious ways, or it can also be very subtle. You have to protect against confidence from past successes spilling over into cockiness. There’s always someone out there who is better than you so stay humble and realize that, more often than not, you aren’t as good as you think you are. Supreme confidence is great. Cockiness is a big turnoff to everyone around you.