The first thing that I would ask is where is the guitar (should I assume it's an electric?) in relationship to your body? Most people tend to play their guitars really low because that how they see it in videos and I guess it's really cool but it's harder than anything to play well like that. Worse, you can develop serious wrist problems by doing that for long periods of time.

If you will watch the really good guitarists (those more intersted in playing well rather than showing off) you will notice that they tend to have their guitars strapped higher on their bodies. Ideally you want your hand that's fretting the neck to be about the same height as your chest.

Secondly, if you're playing and singing at the same time, don't be surprised if you find yourself taking a look every now and then to see where your fingers are. EVERYONE does this and if you carefully watch people playing on stage you will catch them doing it. This is especially true the higher up on the fretboard you go. I hope this helps.