Your experience seems to be very much like what happened to Lerina Garcia where she woke up one day and everything was different. She didn't know how it happened and obviously, since she is in our reality, she can never go back. However, Frederick Dodson, who wrote the book; Parallel Universes of Self, states that we can traverse into parallel universes controlled by our desires and by our own minds. If this is true, than can Lerina go back to her world and can you do the same with your situation? After reading Mr Dodson's book I wonder if somehow Lerina had a dream where she desired to be somewhere else and it just happened when she woke up. I wonder if this is what is happening with you? In the simplest form, Dodson points out, to make a shift in your reality, you have to want it to happen but you must not obsess over it. You have to desire it but you also must be calm. Visualize where you want to be and then you have to back off and accept that it will happen. That is the only advice that I can give you.