+1 for what F2S said, some skillsets cannot be learned on your own.
Sorry if these are stupid questions - What pistol are you shooting? Ammo? Modifications to pistol? Have you shot at 10y, 15y and 25y?
OP are you shooting a Glerk?
also http://http://www.google.com/search?client=safari&rls=en&q=pre+ignition+push&ie=UTF-8&oe=UTF-8
Thanks for the tip. I’ll give it a try and see what is happening. I thought about finger on the trigger placement. But as you noted, I didn’t think it was it because when I dry fire or do dime drills the sites really don’t move. Worth a shot!
I know people keep saying to get training, but I HAVE had training. Am I supposed to go and get training every time I have trouble with something? 
Availability in my area and time are low for me so I have to make do until then.
Nope, not stupid questions at all. Pistol is M&P9c. American Eagle 9 mm 115 gr and Remington UMC 9 mm 115 gr (I believe). No mods to pistol other than meprolights. I’ve shot out to 15 yds. The pattern widens up as expected, but the down and to the left becomes more pronounced (also, as expected since its happening fairly close).
Nope, M&P9c. Also, your link doesn’t work for me in Chrome?
When I switched over to the M&P9 I found I had to focus much more on trigger technique to shoot it well. Specifically I had to use LESS finger (trigger more on the pad of my finger than the joint) alleviate the low, left problem. Other shooters I know had the same experience when switching to the M&P from Glock and Sig (especially).
Down and left is one of the most common problems for right handed shooters. The most likely cause is pushing the pistol down in anticipation of the shot going off. Its to the left and down because you are right handed and are inputing more movement into the pistol with this hand.
As previously stated the best diagnosis is to mix in dummy rounds. Keep focus on the front sight and you will see it move when the pistol fires on a dummy round. Mix in lots of dry fire too.
My opinion is that for the great majority of shooters their shooting errors are induced by anticipation of recoil. Different people anticipate differently. It may be snatching the trigger, tightening one hand, pushing the gun etc. You have to find what works for you to mentally convince your body not to anticipate during firing. A lot of rounds and practice always helps too.
Regardless of what the internet says it is difficult to get small groups at distance with a pistol. If you can regularly keep 6-8 inch groups at 25 yards you are doing well.
This suggestion is assuming you have an average size hand and are gripping the pistol in a manner that gives you consistent sight recovery after each shot.
Place a 1" paster on a contrasting target and fire shot groups at 10 yards. Try moving your index finger to different positions on the trigger and fire shot groups at each position.
Start at the tip of the finger, the area opposite of the quick of the fingernail, then the right side of the trigger touching the crease on the distal joint of your finger. Check each group for the most consistent pattern. Then try placing your index finger on the trigger at positions between each of the three I suggested above. You will find a sweet spot of the trigger finger that works best for you, then train using the sweet spot.
The crease adjacent to the distal joint is the position I use the most when shooting handguns. I move the trigger finger to the area opposite of the quick of the finger nail to shoot 100 yards with a handgun and longer shots with a rifle.
Try it and let us know how it works out. If it does not work, the most you have lost is a few minutes and a box of ammunition.