Greetings friend, fear will always be a great barrier, physiologically we are born with this fear to prevent us from putting ourselves in danger or to respond quickly to it, but over time we learn many more fears than we need, these slow down our personal growth but the only solution is to face them and find out if they had any basis or not, otherwise we will always be trapped in a small comfort zone.
That's right. Once we have discovered what we fear the most, we should work to overcome it by doing that same thing. Thanks a lot buddy