Skipping 11th grade

Back in 9th grade I went to a public school, however it was very terrible with academic rigor but I was involved in numerous clubs and sports. Then, my 10th grade year I did homeschool, I did a community project and I took the ACT and made a 23. At the time my main goal was to make high enough to take dual enrollment. Now, I’m entering [idk what grade]at a private institution. I took a placement test and I made above 12th grade. Furthermore, with my last attempt to regain my extracurriculars I think I’ll volunteer and do research projects. So my main question is should I take the risk of graduating early, my main concern at the moment is the ACT. On the other hand, if I stay as a junior, I could be faced with take unnecessarily courses. Lastly, the local community college that I was planning on just getting my associates degree from in high school, increased the prices.