Wow, it's that kind of compassion that is going to make you a fantastic physician with a cracker jack bedside manner, flip.
To the OP:
I think I see what you're looking for. A lot of things have happened in your life that you probably wish you could undo. There are some black marks on your record that are going to make you look somewhat unappealing to admissions committees-- you withdrew from med school at SGU, you dropped out of undergraduate school, etc. However, you have to keep in mind that you have way more on your plate than the vast majority of us.
You have a couple of questions that you really need to ask yourself before you keep on journeying down this road-- why medicine, and can I still do this and be happy and healthy?
The why medicine question is probably bigger for you than most of us. Is it because you want to help the mentally ill due to your experience with bipolar, is it a subconscious/conscious attempt to "cure" yourself, do you feel you have to prove yourself in some way? It's a huge question, and I think that you have to have the REAL answer and not some bullcrap answer like most applicants do ("I want to help people") so that you will have some moral compass to guide you.
The other big question is, can you be happy doing this? What is going to make you happy and stable in life? Because it probably isn't going to be medicine. If anything, med school, residency, and your career is going to add an aspect of instability to your disease and so you need to have a serious discussion(s) with a psychiatrist that you respect and trust as to whether or not a career in medicine is going to be possible with the severity of your disease. Ultimately the decision is yours of course, but a good physician can help guide your decision.