Nice choice for a gun, although I may be slightly biased...
So, first off, bring the target closer. Work on groups, put some 2 inch circles on a piece of paper, bring it in to 3 yds and start there, if you can't keep them in the circles, bring it to 2. Once you can, start pushing it out. A great target for this is the Dot Torture target on pistol-training.com So how to avoid going left? Watch your front sight more, 100% of your vision should be on the front sight, the target should be blurry, the rear sight likely as well (depends on eyes). As for you trigger finger, ignore that useless target that talks about your finger and where it is on the target, find where it's comfortable for you and you can press the trigger without disturbing the sights, that's it, tip, full knuckle deep, doesn't matter, what gives YOU the most control. Lastly, your grip, you do need to work on that, that you are opening it up after each shot and re-adjusting means you don't have the left hand on there right, nor are you squeezing together with enough force. These are all little things, that over time you will hopefully master, practice, practice, practice dude, and you'll get there.