relationship/ long distance advice plz!

yes i’m posting this under two topics bc i need help so i’m very sorry if u see this twice. lately i feel like ive been having doubts abt me and my bfs relationship. We’ve been dating for a year & a half and we are juniors in highschool. obviously at the beginning of the relationship we would talk 24/7 abt how we were each other’s soul meg and wanted to go to college togther and get married early and have kids blah blah blah. and lately i’m just not sure if i feel the exact same way anymore. he’s the sweetest guy on earth and treats me great overall i just feel confused at the moment. ik we are only juniors but i’ve been thinking abt college a lot bc i’m going to start applying soon. he alrdy knows where he is doing and it isn’t where i’m going so we would be doing long distance. i honestly have tons of worries abt long distance and i think that’s why i’m feeling this way. some part of me wants to break up before college bc i don’t want to get to college and hate long distance and feel like i’m tied down and trapped with someone that i can’t even be with face to face. also i feel like if we broke up and were truly meant to be, we would get back togther again if that was God’s plan. i’m just not sure what i should do. i would never want to hurt or lose him in any way.