Iam 22 years old. I was wondering if I have a ptosis?
From your photograph the position of the corner of your eyes, the canthal area looks normal and is not drooping. The normal position to lift a sagging eye is a canthoplasty. However as others have stated you do have a slight lid droop called ptosis which may be contributing to your looking tired. Please consult a board certified plastic surgeon who is experienced an oculoplastic surgery.