Just having an ego is not a bad thing. An ego is our self worth; how highly we think of ourselves. Having an ego is important and healthy. To be the top in any profession or field, you have to have an ego. What's unhealthy, is an out of control ego. An ego out of control can is to become overconfident, take on more than we can handle, never ask for help and never admit when we're wrong. Don't feel bad if you have an ego, as long as you can control it.