I have a somewhat stupid reason for not joining the marines please help me.?

Ok i know this might be laughable to you but i actually take this serious and its hold me back. I havent joined because i have a giant head. Really im only 5'8 and i use a XXL cap its holding me back because it makes me self conscious and insecure i usually keep my hair long to somewhat make my giant rectangular face look small and it makes my head look smaller the hair hides the skull abit. I cut it really short to see what i would look like in the service and my head looks 10x bigger my face is giant and it depresses me. Im sounding like a pussssy but theres no way in hell im gonna be single for four years or for the rest of my life if i make a career out of the military just cause my head is too big.