I frequently see postings from people who are very distraught by their diagnosis and the uncertainty of the future. They often seem to be chronically distraught. This article has some good tips like this one:
Q: To spend some time mired in anxiety and concern about the future is inevitable with MS. But, at what point does it become pathological?
A: Worry and anxiety are pathological when they are costing you more than they are gaining you.
Worry and anxiety are emotions we feel that help us do the right thing. If children go play on the highway we feel worry and anxiety so we go scoop them up.
These emotions are there to guide us. But once they are not guiding your behavior and helping you make good decisions, once they are just taking you over and making each of your days bad, then they are not cost effective. Now the question is, "What can I do to get rid of them, because they are not my helpers anymore, they're my enemies, so can I find a way out from under them?"
It's a good article worth reading if you're feelings about MS are spinning out of control.