I've got to agree with Bob on this one. It takes some time to realize that it's not the end of the world. Now I say that not knowing what your initial onset is or the path of your progression. However, in most cases, it is seriously counterproductive to scrap all your future plans for something that may or may not happen; ie, you get debilitated by this. I'm a 3.5 on the EDSS, but I still work full time. I've had it for 8, almost 9 years. It isn't easy mentally initially, but over time you will realize that the one thing that will KEEP you sane is to push forward. It may not be as easy, but it can still be done.
Good luck with coming to grips. One thing I'm always on the lookout for is all the potential "demons" that come with this. You know depression, anxiety, and stuff like that. One technique I try to do is, at all costs, stay in front of stuff like that by getting educated and looking for the signs of those types of things so they don't get all the way on top of you before you can take action.
This disease sucks, no two ways about it. But one thing you will learn is to DO WHAT YOU CAN TODAY. Tomorrow is actually just as uncertain for everybody as it is for us. Life can change in a flash. Learn to milk out of a day everything that's in front of you. If you are worried about what MIGHT happen, you won't take advantage of what IS happening.