I believe free will exists but the world is deterministic. In your life you can make any choice you want & it was decided by you. However the effect of your actions on the world is so small that it will continue on a predetermined path. Events in the future are “predetermined” & all I have power over is how I react to it.

it all depends on how you define a person. Most likely, you think that a person's consciousness is something inside the brain, and in this case, the "external" body really influences your decisions. But that's not how it really works. The body is also a part of you, so everything that happens inside it, including "the hormone levels", is a part of you. And your experience is a part of you too. It's just that you can't control it, but that doesn't mean it's not your decisions. Otherwise, we will come to the conclusion that muscle memory is also not a part of you, but some kind of external factor. In general, if you are interested in my answer: yes, we always make decisions on our own.

Fun thought exercise but functionally irrelevant. It still feels like I'm making decisions, so that's close enough.

You gave an argument against free will based on Determinism, but there are other good and even better arguments IMO. Like the science-centrist arguments of Neuroscience , Psychological and the Evolutionary Arguments. Then there are the philosophical Arguments from Divine Predestination or Fate. There are still more but the fun is on the discovery.

Yes I do, because my own experience of existence suggests I have it. Could that all be an illusion? Sure. But believing I don't have free will would pretty much deny the existence of my self, which, being myself, I'm not really capable of, nor would I want to do that.

We have free will, but the majority are not free to exercise it because of material conditions and/or circumstance.

Does that even mater? Either stance can't be proved.

If free will was truly non-existent, it would mean that a theoretical entity with access to perfect information would be able to perfectly predict your actions. I don't believe that is possible; I think that human beings are too irrational. Consider a very simple decision: what am I going to have for dinner? You could know the restaurants I have access to, what food is in my home, what I have discussed in a given day, and even what my current mood is, but it can ultimately come down to a whim. I could choose something I've never had before, for no reason, and seek it out.

I believe that we are individual actors in a very complex system that introduces lots of constraints to our decision-making process. We may not even be consciously aware of some of the constraints; however, we are always the ones ultimately making the decisions. You always have the option of a whim.

ya'll some neo and oracle bustas up in here.

yes, as entities that are conscious of consciousness, we can steer ideas and actions with our will and intent.

This may or may not have universal implications, so stop trying to be all grandiose. we're barely existing conscious ants that have imaginations. does that mean the universe won't experience entropy? one of these things is not like the other.

Local causality doesn't imply unbroken universal causality. In fact, the idea everything is a purely deterministic projection of some initial state is far weirder than the idea that stochastic actions can influence a partially deterministic state.

You have as much free will as a leaf or a fish.

Yes. I could talk about quantum indeterminacy as a scientific argument for it, but fundamentally, I believe in it because I want to[1]. I don't like the idea of being a deterministic machine with a fate I can't influence with active choices. It's not provable either way with the current state of science, so I choose to believe my preferred option is the correct one.

[1] Of course such a statement presumes free will. I think I want to, anyway.