Why am i the only one wearing lots of makeup in college? what should i do?

ok so when i go to college i put on foundation, eyeliner, mascara, eyeshadow and lipstick and i always like looking polished and put together and i wear jeans and sweatshirt but other girls wear no makeup or very little makeup and they come in sweatpants and they look like they are at home..i am in a pharmacy schools and almost all the students are study freaks..so is it just my college or do girls in other college wear less or no makeup and should i skip the eyeshadow to blend in with other girls?