I'm thinking about changing my major

Hey, so I'm a Junior (Bachelors Degree) at Florida Southern College currently going for Business Marketing, but these last couple days I've thought of changing my major. I went to college straight after finishing high school and I didn't know what to pick for my major. I don't feel a passion for something in specific.. I remember I literally searched in YouTube "What to study if I don't know what to major in", so that's why I chose Marketing. I've literally taken 2 classes related to Marketing and I don't feel passionate about it. In fact, I've never been a business person myself. I've been working as a pharmacy technician recently and I've learned a lot about medicine and stuff, but I'm not sure if I should go into that field... I like what I'm doing, but I'm just not sure... During high school I was into biology (marine biology, astrobiology) but I dropped it because of... insecurity? I don't even know... maybe I had the wrong concept? I guess I'm just looking for advice? And I'm so scared because it seems I've thrown all these years away... I'm literally so nervous as I'm writing this down... Like I know I have potential and I don't want to throw that away, but I don't know what to do exactly. I felt like I could use this group to let all this out as I haven't talked to anyone about this.