Self conscious? If you asked him he'd never give you a straight (ha) answer, but as his creator i can tell you it!!! Its his sexuality! His father tried hard to ingraine homophobia into his life, then his sergeant assaulted him for 8 years (which started around the time Maverick was coming to accept himself for being Bisexual) so its a huge sore spot for him, even with bar hookups where he hooks up with amabs if they make any mention of what theyre doing he gets violent.... Confidence wise is an easier and more simple answer: hes very proud and confident in his physique, even well into his 50s hes toned and has hella endurance, his self defense/hand to hand skills also are a point of pride for him