The thing is, no one can be 100% sure on any of those questions... As decisive as some might seem in their answers, they too don't know the full story. Life could be entirely pointless, or it could have meaning we just can't understand in our limited capability as humans. We're always learning new things about the world and life as we know it.
I have no real answer for you, just that I think we need to try to find our own place in the world and not worry about any divine plans that we'll likely never know about if they exist.
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