We're all for supporting the environment and going green by planting meat eating houseplants.
We're so stoked that you're trying your hand at growing a carnivorous plant, whatever you do don't feed it your fingers, once it has a taste for human flesh things could get ugly.
Once you've got your fingers in a safe place, check this article out for all of your answers:
https://www.flytrapcare.com/growing-venus-flytraps-from-seed