How to lose this frustration from not eating meat?

Whats more important to you, having an animal tortured and slaughtered for you so that you can eat its flesh, or making the conscience decision to stay away from it. You don't need to believe in the vegetarian "cause", everyone's cause is different, some become vegetarians for health reasons not just ethical reasons. You don't need to explain yourself to anyone, just don't eat meat and don't get frustrated.