Canadian in Ottawa, how long do you think it would take for me to become proficient in French?

I'm currently finishing up high school in core French and I'm severely lacking in French proficiency. Never really got it down in school, but I do have a grasp on sentence structure, some conjugation, and probably some other knowledge implicitly learned. I plan to work in government and take French learning classes in university, what would a reasonable estimate for me be to gain an A1-A2 level of French proficiency assuming a normal amount of time developing it?