The reason it’s sometimes difficult to accomplish something is because we put too much on our self. From what I learned from diff shiurim, we should just pick one thing to work on. Mr. Charley Harary mentioned that changing one small habit can help you achieve your goal. And he gave an example of a person that decided to go bike riding once a week, which inspired the person to eat healthier, which helped him lose weight. One small thing leads to another.
Whether it’s saying Good Shabbos, or concentrating on a bracha, or remembering to not talk in shul, everything counts