I have a choice before me, and let's say it's a choice that I can take as much time as I like thinking about it before I choose, etc. Now from my perspective, it seems as if there are a ton of different things I could do (or not do) (or choose or not choose) regarding this choice, etc. But everything that is going on with me before I choose is all determined, etc. And whatever I choose in the end is still all always a result of deterministic processes in the end, etc. Which means I really didn't choose or make the choice, etc. But it was (or could have been) already all fully known by someone who knew or had a much, much higher knowledge about me, and a much, much higher knowledge of all the antecedent conditions surrounding me, and a much, much higher knowledge of all the deterministic processes happening or going on with me in theory, etc. So that in the end there was only one real way any of it could have ever happened or gone, etc, and none of it even had anything to do with me, etc. But without my knowing any of that or this, it always seems like there are a ton of different ways things can go, and that there are very, very many numerous and very, very possibilities, etc. And really, without knowing or being able to predict or know the future either, really there even is from my perspective, etc, even if there is really not in reality, etc.
But it's not fatalism, and it's not like you give up thinking about your choices and/or choosings, and think about the possible outcomes or results of your choosings, and their possible repercussions or consequences, or maybe even possible benefits or positive outcomes also maybe, etc. Even with a knowing that this world and this universe is all deterministic, you still will do those things always, and you still will think about them always, and still will act as if what you will choose will have an effect on them either one way or another always, etc. Because from yours/my perspective they still do, or can, etc, even if it is already/has already been fully known/written/already decided for you in reality, and there was only ever one way it can ever happen of go in reality, etc.
For example, some people will say "why pray", or why try to do this or that good or positive thing for somebody, etc? And it all comes down to us not knowing the present or the future, etc. For example, like whether it was already part of the already determined plan/will for you to pray, etc, and then later on, whether it was already part of that already determined will/plan for what you did or said earlier when you prayed to have a positive outcome or effect or not, etc, because none of us knows that, etc.
It could be just as much equally a part of the already determined will/plan for you to act or do, or try to do or say something, just as much as it might be for you to not do or try to do or say a thing, etc, and that's what a bunch (a ton) of you are not fully understanding, etc.
God Bless.