i started out with a Tokarev, then bought a couple of 9 mm's, one steel, one plastic. I went to the range once, and sometimes twice weekly, rarely shooting less than 200 rounds per trip.
I found I had hit a wall. At 10 m, I could shoot 6" groups fairly consistently with my hi-power. My m&p was worse...10" groups. The Tokarev was a two or 3 out of ten will miss the paper.
I decided to get help. I went to a local instructor who is an IPSC legend, and spent 4 hours with him. I took my m&p with me because I figured I should have something more modern to learn on, and I needed more help with that gun...or so I thought.
He got me to shoot 10 rounds at a pretty large paper target at 15 meters. We had a look at the results, and he told me a lot of things I was doing wrong.
I was closing one eye when aiming, and using the wrong (non-dominant) eye. My grip was biased towards the wrong hand, allowing the recoil to push the barrel upwards. Plus, I was jerking the trigger. It turned out that I had a well developed flinch.
He got me to put my pistol away, and gave me a ruger mk II .22 to shoot. He started on correcting all of the problems that I had developed on my own. He suggested that had I started out with a .22, I would likely have not developed the flinch.
After a few years of practising dry firing with a laser attached to my m&p (almost every tv character would have been dead, lol), my flinch is gone, and I am now shooting 8" groups at 25 yards consistently, a bit less with the Tokarev.
I have a lot of handguns. 5 of them are .22s, and I must admit, I really enjoy shooting them. The reward of improved accuracy, and cheap to shoot, relatively...put a big smile on my face.
Whenever I take a new shooter to the range, I always start them off with a .22, and give them a few basic tips. They develop good habits right from the start, and really enjoy the rewards that a nice tight grouping gives you.
Just my 2 cents, for what it's worth. Your mileage may vary.