Whenever people doubt me not only in my writing skills but in other situations, I always find that proving them wrong is the right way to resolve the problem. You are a writer and you have to learn to accept criticism but learn that not all critiques are things you want to change. First be confident in yourself and confide someone who you know will take you seriously. Ex: Teacher, family member, friend, ect... As your in the process of writing they will help you along the way giving you words of encouragement helping you move forward. Then you post that story onto Wattpad and wait for the comments and the critiques! I'm sure over time you will learn your strengths and weaknesses in writing and use that to make your work stronger. Then after you think your work is successful enough show your account to those that have doubted you to show how much of a true author you are and how serious you take writing. Don't let what others say get to you, the only you thing you need to worry about is never doubting yourself. Have faith in yourself, when people see how happy you are writing, then they may realize they were wrong in doubting you and believe you can succeeded. I think you will be a wonderful writer because I have faith in you. :) @AlwaysMine0708