I'm so sorry you have hit the rough spot. It feels like you can't get out and aren't making any forward progress. Think about it like this, you have made ALOT of forward progress. You have made 7 months of progress actually.
Do you have plans for R&R when your husband comes home? Why don't you and he or you all as a family start making some tentative plans, whether its just looking at places online and sending pictures back and forth or brainstorming places you'd like to see at the end of the deployment if you are going to go on a vacation at the end of the deployment.
For your husband, make up some cute funny goody box. Recently for my husband, who is also a bit down in the mouth, I sent over a Jimmy Buffet cd, some water balloons and water guns, those fake flower leis, sun hats, and a beach ball telling him while he is out in the sand he might as well have a "beach party."
Can you think of something that would brighten his day like maybe a movie box with some movies, microwave popcorn, and some hard candy? A coffee box with some cappucino coolers, some biscotti, hard cookies, and maybe a book or local newspaper.
What about taking him on a "vacation?" Take a picture of him with ya'll on a picnic, out to dinner, to the movies, out fishing or walking through a garden. Every so often take a group picture with him in and at the end make a small scrapbook to send to him.
In the end all I can tell you is to look forward. Today you got up and maked another day off the calendar making it one day closer to him coming home. Be positive that it's not starting over from the beginning. We all know how much that sucks. BIG HUGS. I know this is hard