I suffer from this issue of no discipline for years. Im eventually profitable. I understand my problem is not sticking to my system and revenge commerce which is my major issue. My way is 1 trade each day. Once I entered my commerce with tp and sl put I do some thing else.
Until I enter my commerce I will ask myself and write it down 'is this a correct trade in accore with my system? If yes congratulation.' You really ought to know your system's outcome. Eg my system provides 75% win with tp sl 1. So I will know on average I win 3 times out of 4.
The principal issue with several individuals and even myself is not believing that your system well enough. This creates fear of doubt and generates anxiety. I to suffer from this if I see my commerce. So go do something else as soon as you've entered your commerce in accore with your system.
Good luck. Its been a long trip