The way I see it the zodiac gives off energy. It's up to you how you want to react to it. It's not controlling you at all.
Most people are just ass holes and they act more negative when the zodiac gives of different vibes from day to do and in its extreme a week before and a week after a full moon.
I've had a few deja vu moments in my life, Quite a lot recently. In that regard yes I think life is predestined. But I believe you can cause rifts in the zodiac and change your destiny as long as you are aware of the zodiac and have some understanding of how it works.