[CAN] URGENT HELP; psychology BA or BS?

Hi! I’m a Grade 11 student, going into Grade 12. I want a job in psych as a psychiatrist, psychologist, social worker, therapist .. etc. I’m not sure what route I want to go down, which makes this more difficult.

I currently take Bio, Chem, Functions, which are my only sciences and maths.
Bio: 96
Chem: 90
Functions: 90

Chem and Functions are my lowest grades, and drag my overall average down. My overall is a 94. To take a BS, I’ve seen universities need calculus, advanced functions, Chem, and Bio, which I will have to take next year. However, I am afraid that these grades will lower my overall average even more, as two subjects in math already drag me down. Would an average of 94 not guarantee me acceptance? Should I not take these classes, and should I not pursue a BS?

The reason why I’m hesitant is because people around me have said that a BA is limiting to my job prospects and future in terms of uni. Is that true? Will I not be able to switch from a BA to BS? Can I switch from a BS to a BA? Are jobs only reserved for someone with a BS in psych? Can I get to medical school with a BA?

Feel free to ask questions. Thank you!