I have a bladder problem!? :(?

i am a 17 year old male and it has changed my life. it all started sophomore year at the very beginning . i went to a urologist and he said i had prostititus. (enlarged prostate) and have me pills and sent me on my way. i had to go pee every 15mins. now i don't have to go as much but maybe every hour or so. and i notice that i only have frequent urgency when im at work or school and idk why. at home i go normally :/