Relationship issues

My boyfriend and I of 2 1/2 years are starting to drift a little because of our school and work schedules. Does anyone have any good ideas we can do to get back to where we were?

Facts to note:

We don’t live together, I am 17 and he is 20, he has strange hours, we both are broke lol, and we are waiting until marriage to have sex (it seems like every solution has to do with the bedroom🙄)