So your kit lens is rubbish, you know this for a certainty because numerous photo blogs and camera test sites have told you so. It’s been confirmed repeatedly by a wide array of couch based photo experts on all the forums of great repute and finally the first shots you have taken with it seem to be less than fully impressive. Besides that, there was this nice guy in the camera shop told you that you’d really need a better more expensive lens if you were going to get even half serious about your photography.
Don’t worry most kit lenses are not brilliant when measured or assessed in any empirical way, but realistically your kit lens was almost a freebie so what have you got to moan about. In any case, without meaning to insult anyone, most kit lenses are capable of better results than most photographers are capable of delivering.