Everyone has insecurities
In fact, it’s natural to have insecurities.
It’s how you deal with insecurities that’s most important.
Simple example:
One person takes the courage to ask their friend out. Another one doesn’t.
What’s often the difference?
The first person understands they have insecurities about their looks, they may be rejected, but they want to try anyway because the regret of not asking will always be worse than if they get rejected.
The second person is in their head too much about their looks and the ramifications of being rejected. Their fear gets in the way of acting.
In other words, the only difference between the two people is not whether they deal with insecurities, it’s how they deal with insecurities.