Well, it depends. It depends on a lot of things, actually. Like why did you leave rehab against doctor's orders? What kind of rehab was it? Do you have your depression and bipolar disorder under control with medication/therapy? Are you under a doctor's care for that? Just because you didn't feel like fighting doesn't really sound like you were under duress (coerced by your ex-husband into signing the divorce papers on his terms) or the victim of fraud. It sounds like you willingly agreeds. Just because you've changed your mind, see things clearer now and have "buyer's remorse" is probably not going to be enough to set aside an otherwise valid judgment. Now if you can prove he was not truthful or complete in his disclosures to the court or statements he made to you, and I mean prove with hard evidence (like e-mails, voice messages, letters, etc.), then you might have a case for having the decree revisited. After you have been divorced a year, you can ask for it to be modified for good cause (substantial change in circumstances).