You say that you are attempting to contact higher aspects of yourself.  And then the doubt does creep in.  “How can there be anything but this self that I know as ‘me’?”  For a lifetime you have placed your focus on “me,” and it is this very myopia which has led to the blindness of so many.  Take off your blindfold now and expand your focus.  Shift your consciousness to a reality far more grand than a small blue marble which floats through the cosmos.  Put on new lenses which allow you to see a reality of multiple dimensions in which the greater part of you wanders, explores, and connects with all of Life.
 
Have we not told you that all is One?  If that is so, then the lower self you know as “me” is “one” with a higher self and all selves.  Do you get it yet?  When you connect with your higher self, you are tapping in to the One.  The One is fragmented into you, and your neighbor, and your cat, and a rose.  But this is just one level of All That Is.  Why would not the One be fragmented into spirit guides, angels, and distant galaxies unseen by the human eye at a level beyond which you now place your focus?
 
Place your focus on infinite possibilities.  It is quite a wondrous world you inhabit, but it is only one world.  Take off your blindfold and set yourself free.