Forget the effects and the final look of the logo for now. Work ONLY in black and white and create an identity only as a silhouette. If it doesn't work in black and white without text and effects applied, then it still needs work.
Sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch sketch and do a bit more sketching until you have pages filled with ideas.
Working on a logo directly on screen will likely result in something a bit shit. Sketching frees up your mind and prevents you getting bogged down on a single idea and trying to force it work. It also means you can try lots of different ideas quickly. I tell myself if an idea for a logo can't be drawn in a matter of seconds and still be recognisable, then the design is too complicated.
Whilst you can draw the above designs in a few seconds, their silhouette is not uniquely recognisable; A circle, a rectangle, and a combination of the two are hardly going to stick in people's minds.