I’ve been a vegetarian all my life and so it comes natural for me. I have never had the desire to eat meat, thus the discussion, why it is difficult to stop eating meat is hard to understand.
But as it seams, there are a lot of people who understand why being a vegetarian is a good choice (environment, health, etc.) but they have difficulties to follow. Here Graham Hill talks about a way of doing it, which could work for you too.
Give 5 minutes of your day to his talk, you own it to mother earth. Let me know if it works for you.