Im a vegetarian, but should i start back eating meat again?

i keep hearing all these stories on the news about how soy inside of the tofu is dangerous and lacks important vitamins and minerals which help you grow and also, ive been a vegetarian for almost 2 years now and very scared to go back to eating meat and plus, i hate eating the poor animals but my friends tell me that animals eat each other and humans so its okay.....what should i do?:(