Oh god I cringe reading this because I posted so many thing like this last year! I'm so embarrassed by them now. But yeah, mania rocks until it turns ugly. Like it is right now for you.
You hVe to give it time to get your meds back in order again. I know how that goes, though it's worse with lamictal because the titration is soooooo slow.
Isn't a crisis stabilization unit only for 72 hours? Or do you mean inpatient treatment that lasts for an indefinite amount of time? I don't think 72 hours is that bad. They might be able to find something to help keep you even until the lamictal is at the right level for you again.
There are also partial hospital and IOP programs available sometimes, depending on where you live. I did evening IOP for three months so I could still go to work. They helped immensely when I had a bad depressive episode after a car accident in October. I would have ended up inpatient without them.
I hope you find peace soon