it needs more organization, I feel you have a Chaos vibe going with it, but I honestly thing it's just not good for you to have both of those together. Chaos is basically, you get LIGHT and DARK monsters into the graveyard, and summon 1 big beatstick (2 if you're lucky) each turn. A synchro deck, on the other hand, is a lot more fast-paced. All in all, I suggest getting rid of the Chaos part of the deck, you don't need Chaos in your deck for it to be successful, trust me. And replace those cards with some synchro support, or if you don't have any more you can put in, put in some tech cards (like Maxx "C" and Effect Veiler) and some multiples of other cards.
Hope this helped you out at least a little bit.