I don't believe in free will at all. I never really did from a physics perspective, but after many years of meditating, I don't believe it at the highest level

I don't believe in free will at all. I never really did from a physics perspective, but after many years of meditating, I don't believe it at the highest levels of abstraction now either. I don't understand how that is supposed to change anything at all about how an individual interacts with the world though?