Position The Gun In Your Hand So You Can Reach The Trigger
The angle the gun sits in relation to your arm is not that important. Being able to place your finger properly on the trigger is.
Don’t try to align the barrel of the pistol with your arm.
Practice Holding On Tight
Gripping properly will not just happen. Most think it will just come with practice, but it doesn’t unless you think about it. One area that dry fire can really help is maintaining a tight grip while pulling the trigger.
It’s easy to pick up bad habits from dry firing with no live fire to support the techniques being learned. If you never have to deal with effects of the gun firing, muzzle flip and recoil, you will never learn how to control them.
Learn the hand positions and make yourself do them correctly. Remember, you will do whatever you teach yourself to do. Once you memorize a technique, good or bad, that is what is likely to occur when you shoot under pressure.