Boris and Joe are giving excellent advice about Bullseye training regimen.
I want to add the critical importance of dry firing. Live fire does not allow you to track your trigger control in full detail, because the "bang" obscures the last, and crucial, moment of the trigger movement, right before the shot goes off.
However, dry firing is only slightly less boring than watching the grass grow.
My solution has been to call technology to the rescue.
I bought a SIRT pistol from Next Level Training - it is a laser pistol that cannot fire any live rounds. I bought the 107 model, which copies an S&W M&P full size pistol and modified it using Sugru (Thanks, Joe for the idea!!!) to mimic my 1911 as much as possible.
I am using the SIRT in combunation with the LASR software:
http://lasrapp.com/The software allows me to dry fire while mimicking live fire as close as possible.
I am very limited in the time I can spend at the range - the ranges are closed by the time I get home from work. With the LASR app and the SIRT, I can train in the evenings as much as I can push myself to do - typically 3-5 per week for 30 - 60 mins each time.
Unlimited laser "ammo" + benefits of dry firing + ability to train on very specific exercises and achieve specific iterative goals.
In my house I set up an official 50 foot NRA target and "shoot" it with the laser pistol from 50 feet away. On my best days I can do this:
In fact, lately I have been setting more challenging goals for myself and print out targets with reduced-size bullseyes.
It is still a long road ahead for me, and I am still only a marksman officially (although I have been shooting Sharpshooter scores steadily in training).
I fact, using the laser pistol and software has completely changed my approach to training: I now view the live fire sessions only as PRACTICE session, not TRAINING sessions. Meaning that when I go to the range it is to practice and confirm with live fire what I learned in dry fire training sessions.
I have seen significant improvement. Here are my best targets with my .45 and .22 pistols.
If anybody is interested, I can explain more about how the laser gun and the app are working together for me.