I want to learn how to cook...but how to overcome one's fear of facing the ingredients?

Stick to grains and veggies for a while. Move to the dead animals later, or if at all. Beans are a protein food, so you don't really "need" animal foods except maybe milk and cheese. Don't climb all the mountains at one, do them one at a time. There are enough creative things that you can do with just rice to keep you busy for months.

Throw caution to the wind. If you fail with something just throw it away and try again.