What do I do?

My boyfriend is always busy and is juggling school (we’re both juniors in high school), work, and soccer and track, and is very tired dye, and called me earlier and almost dumped me, but we decided we would give our relationship another shot. I don’t know what I should do, or how I make it easier for him. I really don’t want to break up with him, and i’m so scared he’s going to change his mind and dump me. It scares me.