Should I keep this LV or change for others??

I think epi black petite noe or speedy would be a better choice for you. When I saw your outfit in the modeling pics, I immediately thought of those two bags, before seeing the other choices. Those would be my top pics, and then I'd go for the Damier speedy, only because I have it and LOVE it so much!
 
Hmmm.....I am not a big fan of the bag itself...but I think it looks nice on you. But because you are doubting it...maybe you should return it. You have to 100% love it.