Where Reality And Magic Merge Into One

If I were to shift realities what would happen to the me in this one Lets say I'm otakugirl1 and I want to switch with otakugirl2 would our minds switch or would my mind in otakugirl1 die or go in a coma. Also would I be able to go back to otakugirl1 reality at will or have to stay in reality 2 of o...