Feeling defensive, lacking self-confidence and jealousy are obvious traits that will definitely making impression you as an insecure person. Do not feel defensive if anybody gives you creative criticisms rather challenge yourself to be better and prove that you can correct the mistakes. Let the challenging moment makes you strong & strong. The same thing goes to lacking confidence and feeling jealous of people around you. Learn to believe in your capabilities and at the same time be happy for the success of others as what they say; happy and confident people flock together.