Are you only shooting matches during practice?
What I've seen in the literature is that at least three days a week training is recommended to progress and that just shooting matches is not enough, but it is up to you to choose what to do.
From what I've learned, when you train you should focus on specific areas of your technique, physical and mental state and work to improve them. It is the improvement of these that will translate in better scores over time if you practice seriously. Your effort and concentration in practice has to be significant to be able to progress. Process is what you have to focus on, how you shoot.
The following links from my website may be helpful if you want to dive deeper into training.
These notes with trainer Daniel Goberville from my first ever session with him may be helpful to understand a philosophy of training and explain training much better than me:
https://www.olympicpistol.com/pistol-tr ... lle-notes/
Linked to those notes is this training programme:
https://www.olympicpistol.com/pistol-st ... gobervile/
The first programme I ever got from a coach is this one:
https://www.olympicpistol.com/my-first- ... g-program/
All the coaching programmes I've shared are in the following link, but most of them are only available to my supporters (the people that help me pay for coaching!):
https://www.olympicpistol.com/category/training/ They are mainly from Daniel and Aurore Goberville.
Every coach will have something different, but these can give you an idea of how to work.
These interviews with top shooters can be helpful too (they share practical tips about training and competing):
https://www.olympicpistol.com/category/interviews/ They are mostly in English, but you will find some in French and Spanish too. All the non English interviews are translated to English or in the pipeline to translate them. Google Translate works well enough if you find one that is not translated yet.
These books can be helpful too:
https://www.olympicpistol.com/shooting-books/
If you just want one book for technique the best in my opinion is Master Competitive Pistol Shooting, By Ragnar Skanaker, Pontus Olsson and Mathias Navne:
http://www.lulu.com/shop/ragnar-skan%C3 ... 71225.html
If you would like to talk to a coach and cannot find one in your area, you can try this directory with coaches all over the world:
https://www.olympicpistol.com/coaches
Hope this helps.