Trying to get a handle on being a trucker's wife - advice?

(Indiana )

I'm a wife of a very hard working man. He lost his job back in July 2015 he went and sought bigger and better things. We'd always talked about him being a truck driver but I never really thought he would or if he did I would have thought he would be home every night until he found a company that would pay for his trucking school BUT he would be gone 3-4 weeks at a time.

This made me so upset. Of course I'm going to stand behind him but we also have 3 growing boys. 6 1/2, 3 1/2, and 2 1/2 years old. How am I going to do this?! I am a stay at home mom have been for the last 4 years but this just makes my job so much harder.

At times I feel like I resent him for taking this job but then again how can I when he's out there day in a day out making a living for us. I have so many mixed emotions, all my friends keep telling me it's goin to be ok, it'll go by so fast but none of them have trucking husbands. Their husbands are home every night.

How do I explain to he boys when they ask about him. We are new to this whole experience he is leaving for his first time away from home next week and all I have done is cry I'm so on edge.