Would you follow your head or your heart?

I’m currently 19 years old and at a community college. My father was a drug addict my whole life until he od. I’ve always felt like I wanted to be a substance abuse counselor bc my mom did it and I feel like I owe it to him. Not only that but there’s a big chance I will be able to go into a lot of different work forces with my degree, HOWEVER…Since I was a child i’ve said I wanted my own business and I sorta have one. I’m a vendor and sell natural and wellness products. I love natural and holistic everything, it’s my lifestyle. A part of me wants to stop what i’m doing at community college and go into herbal medicine but I’m scared there won’t be a lot of career choices. I’m really torn in between the two and I know I can do both, but for right now I don’t know which one is better. I’m scared i’m gonna spend 8 years of my life at college just to come out and do what I always wanted to do, herbal medicine. Don’t get me wrong I am super interested in the brain, I watch podcast and read studies about it all the time, but I do the same with herbs and natural remedies. Please help.