I’m going to puff Cornell again as an example of what you should be looking for in a Native program. Yeah, lots of Natives have attended Dartmouth. Harvard has Native education written into its charter document, making it the oldest Native recruitment program in the US. They will let you in. What will they do to make sure you come back your sophomore year, graduate, get into graduate school, and find the funds for all that? Check out programs carefully to see what they are actually saying. Cornell AIP explains that its mission is to recruit, retain, graduate Natives and help them with financial aid and grad school admissions. THAT is what you want in a program, especially if you are low income, first generation, far from your elders and community. http://aiisp.cornell.edu/about-us/recruitment-and-retention
Natives have by far the lowest graduation rates among URMs. Get in and graduate.