Cara,
Sleeping for me is sort of the same. I can fall asleep fine but if I wake up at 2 or 3am I CAN NOT get back to sleep. The mind races, races and races.
I can tell you that I am catholic and believe in the saints. I have many prayers that I say every night before I go to sleep. Let's see, I pray to St. Jude for healing. I pray to St. John Neumann. He helped me through a kidney stone NO LIE! I pray to St. Peregrene...Guess what he's the Saint of???? Yep. Cancer....surprise surprise. WHen my anxiety is bad I pray to St. Dymphna. See, so they get me by. I'm not a preaching religious type. God knows, I'm not the CAtholic that my mom and dad want me to be but those saints....I'm telling ya are there for me! I'll have to dig up the St. Dymphna saint prayer for ya. She's the patron saint of mental and nervous disorders. Doesn't matter if you aren't catholic, I've given my prayer cards to soooo many "non catholic people". Oh and there's a saint for motherhood and pregnancy too. Too funny huh!
As far as what my psychologist did for me is exactly what yours is doing. Changing the way you think. I think I went for almost a year then I stopped and then started up again right after I got married. The second time wasn't as long obviously cause I wasn't as bad off. It works trust me. Just hang in there. You are going through tough times at your age. Hormonally, marriage, house. It will all go away I swear. He also gave me tapes to listen to while driving. My husband would always laugh and say "go with that feeling". It was hard for him to understand what I was going through cause he has not one anxiety in the world. Oh yes he does that's right, war. WEll that is on everyone's mind but I think that's controllable. Unlike our constant anxiety.
As far as IBS and anxiety.....Yes mine is worse when I'm anxious about something but it's not always. I can be perfectly fine for months, get my IBS for weeks and know that it's not related to stress. Go figure. My mom would always say to me when I had a bad flare up, "what's bothering you"? And a lot of times it was nothing. Just normal IBS.
I remember moving in to our first house. It was soooo fun. It will be weird sleeping at first but you'll be fine.