College Long Distance

Hi, ok so it’s my boyfriends second semester of college, and he’s like 13 hours away and i’m still in high school. i’ve been pretty good the first part of the semester but idk the past week or so i’ve just been rlly on edge and worried. like idk what to do. i try really hard to be good and understanding with our different schedules and such and he never said i wasn’t good at it or anything. he always tells me not to worry and stuff and everything. but sometimes i cant help but worry because of the distance. we text everyday and make a really strong effort to skype every week atleast once and have been going really strong. i trust him and he trusts me it’s just idk i’m like on edge and feel like i could be doing a better job of being a supportive girlfriend and stuff? any advice?