long-term planning

I've been thinking about college. The thought honestly terrifies the life out of me. I guess one of my problems is not feeling like I can do things. I don't have a whole lot of confidence in myself, as I have been lately finding out more and more. I'm one of those people who needs to be given affirmation. I need to know that I'm doing something well. I need to be told that I'm doing a good job. Its not vanity. Its not pride. Its necessity. The more I know that I'm doing a good job the better I perform. I thrive of off encouragement. My fear is that I couldn't do well in college. Sure, I had good grades (mostly) in high school. But being home schooled, I always wondered how I would have done in a class room setting. Would I have done as well? what would it be like to do my school in a class room full of kids my own age, studying the exact same things all at once? I am very grateful that I was home schooled  I'm glad I was home schooled. I've seen enough of the drama my friends went through to have cured any desires I may have ever had to go to public school. But still, I always wondered.

My second thought would be what in heavens name would I study? I'd love to go to a Christian college, But they are super expensive. (My third thought is how on earth would I pay for college?)
I'd probably pick a major in journalism or something of that nature. Cause honestly, what on earth would one do with a degree in literature? (which would be my preference)
As I've said before, I love to write. But I also love to speak. I'd love to be a speaker at conferences. Shyness is not a problem I've ever had to deal with. I love to talk. I'd love to be a speaker at youth conferences. What would one pursue to make those realities? I was looking up degrees that had to do with journalism at a local university. I had no idea there were that many options. I thought journalism; you learn  about writing magazine articles or newspaper columns. Nope. There are all types of journalism degrees.
Then I was thinking about traveling, another thing I love. What could I do that includes speaking, traveling and writing all at once? trust me, writing brochures about hotels and resorts is extremely unattractive to me. I want to write about experiencing cultures. I want to write about personal encounters. I want to write from a perspective completely my own. I want to speak about God. I want to speak encouragement to teenagers. I want to speak in conferences full of teenagers who are hungry for and in need of God. I want to travel the world. I want to travel across Europe. I want to see nations. I want to go back to Africa, I want to see South America. How can I do all three and be paid for it? I foresee a great deal of prayer in this area of my life coming. If anyone has any advice or thoughts, PLEASE let me know. If you know of anything I could earn a degree for that could help in any of the areas, please tell me. I feel completely lost on my own