I not sure if it has anything to do with being bipolar but I have the same problem especially after being released from the hospital, I think I have trouble is, because I don't do anything in the hospital but watch TV and sleep.

I try to have my family remind me of things I need to do and tell me if they see signs of me becoming depressed/manic to ask if I'm taking my meds, because sometimes I actually forget and other times I just don't feel like going out to get them filled. So, by them asking me I don't like to worry them so it kind of pushes me to get them filled. I also try to use a calendar and program it into my phone so I know what needs to be done.

I don't really have to many suggestions but if you see a therapist I'm pretty sure they'll have ways of helping you get back into a routine.

Good Luck!