Doing more matches is not the answer, thats just aversion therapy, and that does not work in shooting, a bad shot is not the same as being scared of a spider, it happens simply because your technique failed, learning to handling pressure is 99% about being totaly confident in your technique. You need to practice and train your technique in training, develop your discipline and concentration on sticking to your technique which you do when you shoot tens, thats why its then easy, the ability to shoot under preassure is in gaining a total confidence in your technique, then your match standard will improve, and only then test it in a match.

Nerves have very little impact on the placement of a bad shot, thats down to a technique failure, the nerves cause concentration and discipline failures and then a technique failure.

failures happen, and you need a recovery process, and you should train that as well, even the worlds tops make mistakes, but they rarely follow it with another, they use their discipline to return to concentration, and regain their technique. The rabbit follows the bad shot with another as they desparately want to "remove" it with a good shot, thats panic and wishfull thinking, the expert slows, thinks, and reverts to training technique and knows that if they do so a good shot will follow.

Fun game this!