I have worked over the course of my life to be a better person. I aspire to be better and I know I'm more aware, caring, and honest than I was as a snotty teenager. I believe it was my freewill choice to take that course rather than let my emotions, instinct and appetites guide my actions.
The threat to my freewill comes from the deterministic idea that all events in the world are caused by prior events. As I am an series of events in the world, my current actions can be traced to previous events traced to previous events traced to previous events all the way back to the beginning of time. Everything was predestined by the shape of a nugget at the heart of the big bang. It is my personal arrogance that makes me believe I have free will.
However, when we create a frame of reference that is so large as to encompass all that is possibly knowable, it leaves us with an unknowable void that we can fill with anything we choose. We can't know or affect anything beyond all that is knowable so insert the forces, deity or emptiness of your choice.
In the words of one neo-classical philosopher, "I will choose a path that's clear. I will choose free will."