Here are some basic principles of pistol shooting:
Grip: Hold the gun firmly with both hands, using a proper grip technique. The webbing between your thumb and index finger should be placed high on the backstrap of the gun, with your fingers wrapped around the grip. Your trigger finger should be placed along the frame of the gun, away from the trigger until ready to fire.
Stance: Stand with your feet shoulder-width apart and slightly turned out, with your dominant foot slightly behind the other. Keep your body upright and your knees slightly bent.
Sight alignment: Line up the front and rear sights on the gun so that the top of the front sight is level with the top of the rear sight, and the front sight is centered in the rear sight notch. This will ensure that the bullet will hit where the sights are pointed.
Trigger control: Keep your trigger finger straight and press the trigger straight back, using only the pad of your finger. Avoid pulling the trigger with the side of your finger or jerking the trigger.
Follow through: Keep your sights aligned on the target even after the gun fires. This will help you to stay on target and make any necessary adjustments for your next shot.
Breathing: You can take a deep breath before the shot and exhale slowly while squeezing the trigger. Also, you can hold your breath for a moment before taking the shot or take a half-breath and pause before shooting.
It is important to note that safety should always be a top priority when handling firearms. Always follow the four rules of firearms safety: Treat every gun as if it is loaded, never point the gun at anything you don't intend to shoot, keep your finger off the trigger until you are ready to shoot, and be aware of your target and what is beyond it.
It's also recommended to get professional training and practice regularly in a safe environment to improve your shooting skills.