I will resist my temptation to offer unsolicited advice based on one photo. Congratulations. It was fun, wasn't it?
Focus on the front sight, not the target. Push with your right hand and pull with your left. Squeeze your shoulders together and arch your back. Wear 8-inch high heel boots. Bring a whip. ..... Take a breath and stop halfway through the exhale or totally exhaled and squeeze the trigger.
Ignore Ramen's advice for shooting. Just get a man to protect you since shooting is too hard for girls anyway.
Well, I won't go into the firing stuff. Just some stance suggestions. It looks like you're shooting an Isoceles stance (where you are squared up to the target) (instead of Weaver, where you are maybe 3/4 to the target). I can't really see what's going on with your legs, but looks like you're standing a lot more straight up than I like to. I have my feet about shoulder-width apart, knees slightly bent and most of my weight on the balls of my feet. Above the waist I'm leaning slightly into the gun, with my shoulders rolled forward and arms straight (almost, but not locked). If I'm shooting for score I will literally place the grip in my shooting hand, using my free hand to load it in there as tightly as I can. Then I wrap the other hand around it and I'll present on the target--no aiming, just coming up quickly. Once I'm in a shooting position, then I'll see what my sight picture looks like. If I'm high or low, I'll reposition the gun in my hand. If I'm left or right, I may shift the gun or I may reposition my feet. Then I'll "snap in" again. Once I get so that my natural point of aim is pretty much dead-on, I'm careful not to move my feet or change my grip with my shooting hand. Getting your body positioned keeps you from having to "muscle" the gun. Once I'm loaded and ready, waiting for the target, I bring the gun close into my body. The muzzle points slightly down and my forearms are locked tight against my ribcage. Then when it is time to shoot, I literally push the gun up and away, towards the target. The rolled shoulders and slight forward lean get me down on the sights well and help to soak up recoil for a fast recovery. Of course if I'm not shooting rapid fire, I'll pull the gun back in to my body between shots and let my shoulders and arms rest. That's already probably more to cover in one lesson than I should hit. Next would be some trigger manipulation tricks. And since I have no experience with Glocks, I'm not sure how relevant my stuff is.
I should have posted this before now. Yea that is a bit much for me to process. But I do appreciate the tips, so thank you. My teacher basically said put one foot forward, hunch your back over, keep your hands steady and grip the gun nice and tight (but don't choke it, as I was doing ).
OK. What your instructor is telling you is to shoot with a "Weaver" stance. Ignore most of what I said up there. But yeah, crouch down more. Lean into the gun a bit. It makes you a smaller target, it makes you more stable, and it helps you absorb recoil. If you've ever done any boxing or martial arts, the Weaver stance is in many ways like a "fighting crouch" that is the basis for any hand-to-hand combat--only you're holding a gun.