Position & stance
Grip
Rehearsal & visualise
Lift/breath
Sight alignment
Focus on front sight
Trigger
Follow through

Got to get them all right within a few seconds.
Practice and they’ll become subconscious.

Good tip:
Get into position, close your eyes, raise the pistol to the target, balance out your shoulder, back and chest muscle tension till you feel comfortable then open your eyes. If the pistol is not pointing at the target reposition your feet till you are, without moving your arm. That’s your natural stance. Get that right before you go through all the other stages.

Join a club if you can.

Practice makes perfect!

Good tips here:

https://www.tenrings.co.uk/tips-and-tricks/