Dude if you're getting frustrated with it then just leave it for a while, go play some games, go out for a drink or whatever.
Just do something for a while to take your mind off music and come back to it in say... a week or so with a fresh head
First alias was Haunter. That came about from playing Pokémon while trying to come up with a name..... but then I made something that ended up on KnowYourMeme so I dropped that name faster than something you'd drop fast. Now I go under IKarus which I just came up with one day out of nowhere. Fuckin'...