Dry fire with something small like a dime or a penny on the slide near the front sight.
Focus on maintaining a consistent firm but relaxed grip and "squeeze" the trigger straight backwards. *Do not read PULL, YANK, or JERK the trigger.
If you do this correctly the penny should stay on the top of the slide.
New shooters tend to focus on fighting recoil forces and "dump" the pistol downwards at the last moment before "pulling" the trigger. *The pulling motion often torques your gun to the left.
This results is low shots and ones that pull to the left alot of times.
Just accept recoil as part of the experience and you'll be better off.
I always tell people that producing great target groups is purely a function of a shooters relationship with his trigger and grip form.
as well......Ive had some success putting people directly in front of a target only 5 feet away to start....and tell them to just point the gun without using the sights.
This affords people the opportunity to feel the recoil impulse without spending so much time scaring the bejeezus out of themselves after concentrating on the sights so much.
When the groups tighten.....move back to 10.....then 15....then 20 and so forth.
People seem to grow accepting of the recoil by that point and begin to feel more comfortable with the sight pictures sudden jump when discharging a firearm.
Congratulations on your purchase. Stay safe and just relax.
Listen to what experienced shooters tell you....and watch for the guys and gals with gaping holes where the center of their targets used to be. They tend to know whereof they speak.
PS. Not saying I qualify.
thats my 2 cents.