THB: free will does not exist

My opponent earlier presented us with the definition of free will. Allow me to repeat: "the ability to make decisions the result of which was not wholly determined by external factors."I am of the opinion that the answer of free will is both a psychological one, (1) and a religious one. Because Psychology refers to the study of our behaviors, this is imperitive to understanding how we make decisions. Because Religion refers to supernatural origins and guidance, it would effect our perspective on free will in inexplicable ways were said religion true. Therefore, before we understand both concepts, I believe we can make no conclusive statement on the matter of free will.In regard to Psychology, we don't really know how we make our decisions yet, but we have some ideas. To get a grasp of what Psychology teaches, let's look at some Learning Paradigms. Behaviorism (2) & Constructivism (3) This theory falls in line with my opponent's POW. It states that all of our decisions are simply passive responses to our enviorment This theory states that our behavior is determined by us building off of previous experience. Cognitivism (4) Cognitivism was built from Behaviorism. It takes the concepts of Behaviorism, but says that the learner cannot be passive, but must be an active participant to unlock his potential as a learner. This theory accounts for something Behaviorism doesn't: The decision to try or not to try. Humanism (5) Humanism focuses on human freedom and personal potential. This theory accounts for something Behaviorism doesn't: The emotions of an individual, and the decision of how much value and attention one gives to said emotions. After looking at a couple of the most prominent theories, we can see that some agree with my opponent, but some do not. The theories that do not agree raise some very interesting points which should not be ignored.Psychology is inconclusive.Religion varies a lot, but I'd like to focus on two categories of religion: Abrahamic, and Vedic. Abrahamic Religions Abrahamic religions are those which stem to the character of Abraham, historical or fictional. These religions, most noteably, are Islam, Judaism, and Christianity. Each Abrahamic religion is monotheistic, who believes in the God revealed in their holy text. Each religion teaches that they were created by God to have dominion over the world, and to exercise their personal free will over it to live as they please. Vedic Religions Vedic Religions have many variations, but let's focus of Buddhism and Hindusim. Both teach that our personal choices contribute to the universe by means of 'good' and 'bad' karma. The end goal is to be good enough that you can move on past reincarnation. For this religion to make any sense, there must be Free Will Religions, again, vary. But the vast majority of them require Free Will. The supernatural is near impossible to disprove or prove conclusively. Therefore, not only can we not conclude whether or not religion is true, but we can't necessarily conclude which is the correct religion assuming one is correct! (At least in the length of this debate.) We just don't know.Religion is inconclusive.Neither religion nor psychology are conclusive on the matter of free will. The only way one can assume to know the true nature of free will is to presuppose his own worldview. (Athieism, Religion, Evolution etc.) The presupposition of a worldview is unscientific. Therefore, to say that Free Will does not exist is simply an unscientific claim.I will get into rebuttals in the following round. (1) - Psychology: "the science of mind and behavior..." https://www.merriam-webster.com...(2) - https://www.learning-theories.com...(3) - https://www.learning-theories.com...(4) - https://www.learning-theories.com...(5) - https://www.learning-theories.com...