Im home schooled.What can i do to ensure i'll get into a good university?

I know ivy league colleges are very strict about accepting home schooled students.I went to university websites like Harvard and Duke but i couldn't find a page about home schooling requirements. & what are some things they don't accept.For instance Troy university offers online dual enrollment classes but i don't think they'll accept the credits you received because it's and online course. Also the colleges in my area only offer dual enrollment classes to public school students.