I'm not trying to scold you or anything, but have your coaches insisted that you can't make progress at a rate comparable to your abilities and determination? Some clubs set up their program to focus on a ceratain destination for their top gymnasts, such as level 8. It's possible they don't want to deal with the complexities, logistics, or expense of training beyond 8's, but I'd be very surprised if they didn't allow you to "pack" your routines to the allowable limit as long as you are able to perform cleanly.
If you were to leave your program packed to the limit on a few events, and were referred to a d1 school by a coach who could represent the challenges you had overcome to get as good as possible, you would have a fair chance of landing a non-funded (no scholarship) spot. After that it would be up to you to prove you have "plenty left in the tank".
Having been "under coached", I was only reasonably skilled as I left high school, but after spending a year between high school and college to work and save up for college, I made my college team, qualified for d1 nationals, and placed higher than any other freshmen on my best event.
About the only thing I had going for me was determination and a belief that I was capable of doing so much more than was possible under the guidance of a high school football coach, who took the gymnastics job when he wasn't chosen to coach the football team. You may not have the best training available to you, but you can still make the best of your training.