I know that it's a bit early to be planning, but I'm big on planning. I want to move to a big city and go to a great university (I plan to pursue a Political Science degree) but I'm also terrified because I've always lived in a small town in Michigan with the same friends and my parents. I've never left or been exposed to anything else. My best friends are my life and my rocks; I don't know how I could possibly leave them. I have considered moving with them, but both of my best friends have disabilities that prevent them from being able to get jobs right now, which means that they more than likely won't be able to save money. And since neither of them want to move across the country except for me, it's unfair to ask them to. I really want this opportunity but I feel like it's selfish to take it. My dad is a recovering alcoholic and me and him have just recently repaired our relationship. He's spent this last year being sick and in and out of he hospital, and the idea that I might not be there with him in the event that that happens again terrifies me because I love him too much not to be here if something happens. I know that he wants the best for me and wouldn't ask me to stay, but I know that he'd want me to. He loves me too much for me to leave him and I know that it would break his heart. I also know that every bird has to leave the nest eventually, and I'm more than prepared to do that. I've spent the last year buying stuff for my future apartment so that I'm prepared. I'm a smart girl. I've landed two internships in politics and have been offered more if I stay in-state for college. Should I walk away from those opportunities for some potential better ones? Am I being selfish? Am I overthinking this? Have you ever moved like this? What happened/what was it like? Pros and cons? 

Any and all responses are appreciated. Thank you!