soul possessed by another person
 

what do you do if you and your twin flame's soul has been possessed by a person and is changing your appearance/trying to make you depressed?

You do what I do. Just wake up everyday and ... And... Idk. Now I also wanna know what to do. Watch some unenlightened person come in here and post "you need to meditate and protect yourself, do a cleanse "... Like they have no idea what people like us go through. No one wants us to be happy. Sigh. Cruel world

Answer: Get real.

Your soul can not be possessed by another person.
No one can change your appearance.
No one can make you depressed.

Your soul is native to you and you only, it stays put, no matter what.
Unless you are talking about a very talented cosmetic reconstructive surgeon, there is no way someone can change the way you appear either to yourself or to anyone else.
Depression is an illness caused by an imbalance of chemicals in the body. Nobody can 'give' you depression, it isn't contagious, and it isn't a curse. They can add to your already depressive and confused state, which may be the case, IMHO.

I will not tell you to meditate or cleanse, ever, and I do want you to be happy. You are the one responsible for your joy, and iff other people or other things are crowding it out of you, then you need to get help with that. Being so concerned with a single concept or person or idea or dream, etc, to such a degree that it makes it impossible for you to feel happy or free is obsession, and it is a negative, not a positive. There is nothing negative about real love, if it is hurting you, then something is wrong in your thinking, not in the world.