I have a sigil and magickal name which I see as the same thing as that name of my higher self.
I avoid enns because those are from the religion of demonolatry, and I despise worship and groveling in all forms, a chant I could deal with but not an enn, by the Belial in me, that just disgusts me.
My chant affirming my connection to my higher self however is here in response to someone who also made themselves a sigil:
I also have a couple of sigils that represent me with an entity invoked, a sort of combo being.