Salvia Divinorum is incredible, a tidal energy wave of mythic proportions. The trips can be very confrontational in breaking open binds ignored or resisted in oneself. They have the power to take you completely out-of-body and put you in a full experience of other dimensions, some of which are extremely complex and bizarre.
However, smoking Divinorum can be incredibly tricky. Not only do you come-up in 30 seconds and are there for a too-short amount of time, but when you get slotted back into reality, you don't really get offered a period of integration, of fusing the experience into your life, unlike the Mushroom or LSD where you're given the generous blessing of a long come-down with plenty of breath for integration. This could prove troublesome considering your condition.
However, if you're aware of your degree of intake and can make sure to have more of a threshold (maybe "Level 2" if you've researched the 6-level system of Divinorum intensity) experience, there can indeed be levels with psychotherapeutic benefits. For this, if you insist on smoking rather than the quid method, I would recommend that you smoke pure leaf rather than an extract, because it makes degree of intake FAR more manageable. Of the dozen or so experiences I've had with Divinorum, two of them, both smoking pure dried leaf and both I'd consider a level 2, I would consider to be very psychotherapeutic. One of which felt very much like cerebral/intellectual integration, like fusing all ideas of the self into one idea of the self, and the other was much more of an empathic integration, like fusing all unique, conflicting emotions into One fluid emotional energy. The latter trip seems like it could be a positive healing therapy for someone with a bi-polar condition. However, this being said, THERE ARE NO GUARANTEES THAT THIS IS WHERE THE PLANT WILL TAKE YOU. This goes for all psychedelics, but Salvia Divinorum especially. So, if you're set on this, preparation for what it could be is crucial, and that includes setting out the days for yourself afterward if you do find the Salvia puts you in a depressive state when you come back...
Both psilocybin mushrooms and LSD if used with the right intentions have more of a psychotherapeutic proclivity, and both the "take-off" and most importantly the "landing" of those psychs are much more accommodating for someone looking to overcome a discordance. But Salvia is still worth your regard, and honestly I'm a little excited to see someone in your situation consider it.
I'd like to add a little personal advice from me to you. Perhaps you should consider that the plants won't necessarily make you overcome what you're attempting to overcome, but consider that they might instead illuminate for you ways to live with it, so that your life is more enriching and less negatively affected by the condition in question. Just an idea...re-examine your intentions. Are you looking for ways to rid a significant aspect of yourself? Or would you rather look for ways to understand and ultimately accept that aspect, which is a part of you?
EDIT: As I see you've offered in the original post, I reflect. Please feel free to PM me if you have any questions or ideas. And let us know how things go when/if you put this self-devised treatment into action; your experience reports and summaries could be valuable to us.
