Happy to greet you bro! Discipline is a value that few know, and it is a very important characteristic in personal growth. I myself feel that I am not disciplined enough, at least not in all areas of my life, but I am aware of it and keep working on improving. I think that of all these tips you mention I have to leave behind is immediate gratification, that is my worst enemy. Thank you for sharing your experience, you have helped someone else through reflection ✌️
Knowing you need to I crease your level of discipline means you're on the right track to making it happen; add in some action towards the steps that will help you get better and you'll find the rewards will come.