((((Mary Alice)))) you ARE someone! I'm very sorry you are having to go through this with losing the current T. I honestly don't know the heartache, but can imagine vividly and empathize.
Hospital stays are to keep you together when you are coming apart. Yes, your issues will still be there when you come back out, but hopefully it will help stabilize you and get you to a point where you don't feel so abandoned and lost and hopeless... and it will keep you alive...the most important thing.
Many people have had to change Ts, and often it turned out for the better. I know you can imagine that right now, but to try and think that it really isn't the end of the world...that will help.
Hang in there, hon.