There isn’t a person amongst us who doesn’t have insecurities — some are just better at dealing with them, or perhaps hiding them. 

For you to overcome your insecurities you must:
1. Forgive the past. If your insecurities have been shaped by a relative or authority figure criticizing you, recognize this. Then start to forgive them. Understand that they were driven by their own insecurities, struggling with their own demons. They behave imperfectly, but we all do.
2.Accept all of yourself. Pause and take a self-assessment. Notice the parts of yourself, both your body and your inner self, that you don’t like. Take a look at these parts of you, and see if you can send them love. 
3.Practice self-approval. If you notice yourself wanting someone else’s approval, their praise and attention, their likes and retweets … pause, and instead replace that with self-approval.
4.Embrace non-comparison. Comparison of yourself with how others look, what they’re doing, where they’re traveling, how much fun they’re having … it’s never a useful comparison, and it actively harms you. 
5.Develop trust in the moment. Through all these practices, start to develop a trust in yourself that you’ll be OK. Develop a trust in the moment that it will unfold and all will be well.

This is the path. You find the things you’re struggling with, and learn to work with them. Learn to shift your perspective. Learn to see what’s tripping you up, and turn it into an opportunity to practice new skills.