Sounds like you already are transitioning slowly. Chicken and fish isn't "bad for you" by the way. Humans have been eating meat since there were humans...we are all still here.
Switch out healthier options for your junk food. Often, when I want something crunchy, celery, carrot sticks or raw apples will do just as well as chips. If you are craving something sweet and you already had a good meal, try eating eating a pickle.
Its an old dieters trick to get rid of the sweet tooth by eating something sour.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.