I applaud you for thinking this through carefully. I also agree that you have a phenomenal opportunity at NC State… financially but more importantly the chance to grow. Do not be afraid to make missteps or to admit you may be homesick at some point. If that happens, do not be afraid to reach out to the campus resources (dorm RA, advisors, professors, mental health services, FGLI cohort, etc.); they are there to help you succeed.
Regarding the dorm room… ignore the over the top rooms you see online. That is a minority of students. Keep it simple, bring the necessities, Amazon delivers if you forget something… do bring photos and small special items from home that will bring you comfort.
A big congratulations to you!