This seeking for identity – this desire for selfhood – this urge to be “somebody” is universal, but we make a mistake when we seek it in conformity, in the approval of other people, or in material things. It is a gift of God. You are – period. Many people say in effect to themselves, “Because I am skinny, fat, short, too tall, etc. – I am nothing.” Say to yourself instead, “I may not be perfect, I may have faults and weaknesses, I might have gotten off the track, I may have a long way to go – but I am something and I will make the most of that something.”
Recommended reading: “Psycho-cybernetics” by Maxwell Maltz