There's a couple ways that you can really screw up the grip.
Now one way is to put your hands on the club much too strong.
I call it riding side saddle.
You get your hands on there way on the side of the club.
This is actually a very strong condition.
Strong give you a positive connotation but really it give you bad shots.
You don't want your hand really strong because that will twist the club face closed and you'll end up hitting the ball quite low and hooking it to the left for a right-handed player.
What you want to do is try to keep your hands in more of a neutral position where the Vs formed by the thumb and index finger pointing to your right shoulder.
The other option is having too weak of a grip.
This is not a good option at all either.
This will cause the face to be quite open through the ball, cause you to hit took weak of shots, and they'll pop up to the right with a ton of dynamic loft and too much of a glancing strike.
What I suggest you do is evaluate your grip in both situations so that you get your thumb and index finger, the Vs formed by them, pointing approximately at your trail shoulder.
That will keep you in a real neutral position and allow you to hit a lot of great golf shots.