IMHO, You will say yeah Ill take at "least" a class, then your hours will overwhelm you, and you"ll say, well next semester.....................
Then next semester you will say,............. well Hell Im making good money here, why go to school, Ill take a class here or there when things "settle down", its been a tough couple of months Joes been off on comp and Lucy is on leave, adnauseum, and the hours are big coz of that, and pretty soon you are an old gray fart,
and you will drive the rest of your life, wondering why you didnt use your brain instead of your brawn. Maybe you will like it, I did, in the words of the famous UPSMEOFF, "I love my job just Hate what they have done to it"
Whatever you do, get your education.