I finally started mine but I had been dreaming about this since I was your age. I would say if you have some extra money and you love what you do, just do it, make mistakes but also commit to things. Never half do anything. Fully commit to something you believe with confidence. Maybe it won’t work and you get experience. But I am regretting now so many businesses I started that were perfect but I didn’t have the confidence to fully commit. I never regreted a business that failed though.