Relationship advice ?

My boyfriend and I have been together since we were 15 (we’re 18) and I really love him. As soon as we graduated , he started working the night shift.

He’s been at that job for a year now. At the beginning we saw each other as much as 3 times a week . But now we only see each other once a week . And I’ve tried to be really understanding because he’s up all night working . But sometimes it’s really hard . And I start complaining. We want to be with each other but how can we make things better ....