I'm an undecided soon to be college student ! Help please ? ?

I had decided to study pharmacy and I wrote it down as a major on all scholarships and college information. BUT, now I am not sure is that is what I really want? I'm VERY good in math , AP calc in high school was the highest I went. And chemistry 1 in high school wasnt so hard either. But that's high school and I don't know what career to study for ? Can someone please help me ? If you are a pharmacist, inform me please. I want a job where I can have a month vacation during summer to visit my family and spend time with my family as well. Please help me, I appreciate it .