I teach high school and I always recommend to my students to leave the state for college if it is feasible for them/their families. I am biased, for that is what I did. I just think that college is the time of your life where you begin to truly become yourself: you leave behind whatever impression/identity you have made to the same people over the past 12 years and enter a realm where no one knows you and you begin fresh. More importantly, you learn take ultimate responsibility for yourself right away: you're it. Some people shudder at the thought of not having mom-n-dad nearby (I have no idea if this fits you or not), but I think it is invaluable to be in a place where if something goes awry you're the one who has to figure it out. From a distance, mom-n-dad become supporters via advice rather than rescuers (which I see more and more today).
Further, Colorado will always be here for you--take this time of your life where you have greater freedom to explore and see the wider country/world. I also recommend a semester abroad if that is feasible. I never got to, but I took some trips early enough to make me wish I could go for a longer time.
Whatever you choose, make a bold choice. Don't be afraid or hesitant or tentative--go for it. If it doesn't work out, your family will (hopefully) welcome you back.
Cheers