If I'm being completely honest, I dont really believe we have free will. Or we do, but in an almost entirely meaningless way on a civilizational scale. While you might be able to make small choices, material conditions and the flow of history ultimately decide the course of your life. We're all just products of our environment which none of us can change on our own, and as much as we can change our environment as a collective is decided upon by current conditions which are determined by oast conditions, etc. Basically i think the entirity of history was determined at the big bang, and were all just along for the ride.
Well, for individual perspectives, the idea that I have no free will still affect how I act by abandoning attempts to "just do" hard things, and prioritise changing the influential environment, instead. Don't keep candy in your house because you'll just eat it, stuff like that.