Re: Why Can't I Stick to Anything?
Sometimes having bipolar can make us feel really weird and helpless--but to put your problem in perspective, read any women's magazine and you'll find an article about how to say no, because we all have trouble with it.
It sounds like you're trying to acheive reasonable goals, but I wonder if you also need to cut yourself a bit of slack. If you say yes to a date, and you really don't feel comfortable going, you can always call and cancel. Yeah, it sucks a bit for the guy, but really if you don't want to be there how much is he going to enjoy your date anyway.
The regular bedtimes, have you tried something as simple as a watch alarm, set 1/2 hour before bed, to give you a concrete reminder to start heading to bed. As for getting up at 6am, 8 hours is not enough sleep for me, maybe it's not enough for you either?
I have trouble with absolute dietary rules (because of an eating disorder history), so maybe this isn't really relevant, but unless there's a medical reason to cut out all sugar, what about having just one small portion a day, so you don't feel deprived and over do i when you do finally indulge?