So i'm a first year college student who's trying to work out a long distance relationship with my gf and i'm having second thoughts about things. Honestly a big part of it is hornyness. But another part of it is, we're both probably going to stay at our respective schools for 4 years and we both question the feasibility of the relationship. we've been dating seriously for over 2 years and I don't feel it'd be right to just end things becuase i'd like to sow my wild oats but she's my first gf and a big part of my libido is wrapped up in how i'd like to have a girl appreciate my big dick. My gf thinks it's big but I have this repetitive fantasy of meeting a girl who's just over my cock. Which granted isn't really realistic. What should i do to alleviate my doubts or better my relationship?