Married man

How does a married man be ok with being a nudist when he has a small penis....all these other men hang better and it's like damn ...how am I suppose to be a man to my woman when she sees all these other big dicks out there .....I loose sleep and drink too much over this ....no matter how much I try I still have a smaller cock than a 18 year old and I'm trying to be top dog...just seems dumb at times....does anyone else feel this way???...please comment and say