Opinion on 15 yr old attending college and high school at same time?

Okay im 15 yrs old and i have always been on Principles honor roll. I have an amazing average and a GPA of 4.3. I am currently a Sopre but i have 18 credits already. to graduate I have to have 24 credits, but to attend tech college i only have to have 20. So for the 2nd semester in my Junior yr i plan to attend college. My parents are indecisive about my decision because they dont know if a college setting would be right for me at my age. I know i can handle this situation but research shows that most teens who start college at an early level tend to live very stressful lives. I understand this consequence, but i really need to get a head start at college. I plan to become a Clinical Psychologist, which is 9 full yrs at a college. Along the way I am gonna get Law Degree, and become doctor. This is a huge goal but i know i can accomplish it. I have been taking honor courses since 8th grade. and i have at least 95 in every subject, including 100 in math. So i was wondering what is your opinion on 15 yr olds attending college?