Advice on long distance

So me and my boyfriend are currently living 45 min apart. I moved a few months ago and don't have a car because of school. We are both super busy during the week so we can't talk much.. it's very hard on me and causes a great deal of anxiety. He can't text me much more then he already does. He would never cheat or anything like that but we are trying to repair our relationship after a rough patch and I get doubts and anxiety because we can't talk much. Any tips on how to stop feeling like this?