There are a few things you can do to make your gun grip better. One is to keep your hands warm. When your hands are cold, they tend to be stiff, and more difficult to grip the gun properly. You can also try using a shooting glove or wrap your hand in a towel when shooting.
Another thing you can do is practice regularly. The more you practice, the better you’ll get at gripping the gun properly, and the easier it will become. You may also want to try different grip techniques until you find one that works best for you. And lastly, make sure your gun is properly fitted to your hand so that it’s comfortable to hold.
If you have any other questions, feel free to ask!