Okay, there's no 'freewill'. 'Freewill' is the ability to choose between different courses of actions unimpeded. 'Freewill' is just contextually dependent and often used in small talk or legal talk. The reality is that everything is cause and effect which impedes on the ability to choose between different courses of action (meaning no free will). This is known as causal determinism. Causal determinism is the the term granted to the phenomena "that every event is necessitated by antecedent events and conditions together with the laws of nature." Because of this truth, there's no free will, only confusion to the matter.
HOWEVER
Within the lack of freewill, or the lack of power in our actions constrained by necessity or fate, we have the power to use necessity and fate to our own advantages to empower our actions. This is known as 'willpower'.
Willpower is the force applied to control, that is exerted to do something. Free will concerns different decisions, while willpower concerns the depth of a single decision. So while we don't have any 'free'-will in our decisions, we do have an infinite depth of free power in our decisions.
There are several well-documented cases of individuals doing the impossible to accomplish a task they would simply not accept 'no' for. The 100lb mother who fought a 700lb polar bear, the 5'8 women who lifted the car to help save a school boy, or the 22 year old girl who lifted a burning truck to save her father. These individuals had no 'Freewill' in the matter, but dug to the depths of their core and changed the inevitable by the sheer conscious power of their decisions.
In the case of Charlotte Hefflemire, 19, who lifted a car off of her father, then saved the rest of her family from a raging fire, you can see the differences between Freewill and willpower.
Freewill: she had a few choices- call the police, run way and save herself, or save her family. Due to conditions and cause/effect (urgency, adrenaline, love, bravery, confusion etc) she chose trying to save them (no free will as her conditions were inevitable for her to make this choice).
Willpower: little 19 year old girl, lifted a truck........... Little 19 year old girl lifted a truck...........lifted. A. Truck.
Go ahead, show me the equations for mass, force, power output etc. The math won't add up even with the additional variable of adrenaline. The cause and effect won't add up in physics, chemistry, nor mathematics itself. Consciousness (once again) and the power of intent, perseverance, and determination outweigh the deterministic nature of physicality.
Within willpower, exists the only form of 'Freewill'.
(All you posting about depression the last few days: get serious and exerti your willpower on yourself for yourself.)