how to take away the dead animal taste/smell from meat?
Cooking the meat, marinating the meat will remove the raw smell from the meat.

You can try different kind of meat; beef, pork, chicken... they all smell different.

If wanting to add meat back to your diet, do it slowly and try finding recipes that you can add little bit of meat at a time (mostly stews and sautées) before going full on with a t-bone steak.