We might want to move this so that you have a better chance of getting help, but we need a little more information first. What kind of camera are you shooting? Anything specific that you're having a hard time getting the results you want? Can you post a sample image or two?

Have you tried using a tripod? That with a self timer (so that you're not bumping the camera at the time you're shooting; you bump it and then it shoots a few seconds later) may give you the results you want without buying a new lens. Regardless, try this first for the best and most consistent results.