how in the heck do I get this money for school?

I am in 10th grade and in two years I going to college so I am starting to think about it. I looked online for schools I may be interested in, tuition,etc. I want a doctoral’s degree in the career path I am pursing. I am just the type of crazy person that doesn’t want people to know my career until I am accomplished it, I guess its because I’ve seen so many disappointements in things people were boasting about, so I will just say in order to have my ideal profession I need a doctoral’s degree.I checked online for this school I really like and I being the nerd that I am alculated it up to $400,000 for all of it. I am a B,C,D average student I don’t live in the best school system, and I don’t have the best grades, and the people with straight A’s who have graduated from a school system barely had a scholarship. I heard of loans but it’s scary because my teacher is 58 and still paying on her loans because she wanted to be an aneistologist and dropped out because she didn’t like it after all. I really want this career and to go to college for it, but the fact that I can barely get a scholarship, my family is barely getting by, and the fear of getting loans(which I doubt I will get much if any)what can I do to get enough to accomplish what I have to accomplish?