is there any way to accomplish a mind swap that I just seem to be missing?

[DocSwiv]

im trying to make use of the major mind swap spell for the psychic class, but I am having a tough time finding an adjustment that fits correctly. the mind swap is not one that you can traditionally beast shape/shapechage/polymorph into (except with polymorph any object, which seems to be the only polymorph spell without an adjustment), and simply changing my race in the background section doesnt work because there are several spell like abilities and what not that you dont gain access to.

I tried adding the yithian mind swapped template, but it messes up my mental ability scores and does not allow for them to be switched back.

any help would be greatly appreciated.