I can relate to girls with self esteem issues because growing up in this industry there is the side of you that is obsessed with perfection. You want to please everyone because if you don't, you won't get the job. There is always someone prettier, smarter, or a better actor that you. You start to nit-pick everything. That perfectionism kicks in and it can take over your life if you let it. You have to get comfortable with yourself. Then, if you get the job, it is an added bonus.