Fear holds us back from doing so many things. by having courage, we get to explore our abilities and potentials and discover so many things we never thought possible. You don't want to spend half of your life thinking I should have done that or I should have just gone for it. It's okay to mess up sometimes but that's what teaches us and pushes us to do better. we must learn from our mistakes. Each of us has been laughed at over something petty and we have also done same to others but there is nothing wrong in asking for help because we weren't created to be alone. Also, your family is there to support and help you so if don't tell them, they will never know how to help or what to do.
Good luck for the future. pm me if you need any help.