Need Some Advice On My Evocations - Mepsitahl, mepsitahl Options

well Ive done another evocation tonight of Mepsitahl. and I did the full LBRP and hexegram and I used the goetia evocation. the full lot. and the most I get is a brief flash of her from a recollection I had of another time I did it and was messing around and got full view of her., beyond the mirror just after the evocation when the energy is strong after that i see no sign of her. and then I hear laughing? what gives ? ( and this happens everytime I do an evocation regardless of spirit) and then I hear like voices like someone having a conversation in the background but I cant make any sense of it. (I could be trying to hard to hear something and I do that to help manifest a voice. and then just random stuff happens in my mirror like normal scrying and there is no communication. I dont know if that is anough to say the welcome and I cant even check the identity. Is it because she is a fictional spirit? Im pretty new. only a couple years so does anyone have any advice I can try for next time? any help would be much apprecated. thank you

so it's going well for you?