Nothing. Free will doesn’t exist so I just accept what comes my way and naively trust the universe not to be too much of a d$&#. Hopefully that gets me to the finish line.
Yes it does. I could walk into the street right now. I could walk into the office next door and slap a co-worker. I could learn German. I could leave my life and walk to China.
What is your justification that free-will doesn't exist? Other than biological needs like eating and sleeping, I have control over the rest. Or, rather, I have control over how shitty the rest is. I have yet to hear an argument that has swayed me at all.