Wow. I don't know you, so I can't share an opinion as to whether I would agree with you about being prepared. But you may be, and for some people, this kind of excursion is a freeing and therapeutic experience. I can't say if it's healthy or unhealthy for you to do this, but I do think you should talk about it with someone in your life. I would probably recommend telling your college counselor, even though I understand your worries.

I agree, you're an adult, and it's your decision. I don't think it's a great idea to go off without them knowing where you are, just in case. They will worry.