Some people go right to a tender or maintenance facility. Not every nuke goes right to an operating reactor for their first assignment. While your classmates are scrubbing bilges, you are going to get to learn a LOT about systems, RadCon, and LIBERTY!!
Go to night school and get your degree.
When you get to an operational ship, you will know a lot more about the ship than you think because you will see what one looks like when it is taken apart.