If I want to become fluent in Spanish, should I start out from the beginning or go straight to intermediate lessons?

I took eight years of Spanish over the course of my school career so I’ve got the basics down pretty well. However, since it has been so long since I’ve had any kind of practice my last Spanish class was three years ago but we hardly did any speaking in the class I’m not sure how much I remember. Would it be smart to start out at a beginner’s level in Spanish in order to pick up what I missed and solidify what I’ve already learned, or would it just be a waste of time to start out at a low level?