First we need credible evidence that they even went to the moon as these videos just don't cut it.
You can say what you like - you know perfectly well that Charles Duke went to the moon.
You watched his testimony, believed every word, were moved by it and it led you to a) write a prayer saying "sorry" to God for doubting them, b) write the words "I reckon Flat Earth is a load of nonsense" and c) publicly state that you would ask for God's help in sticking to your new belief.
Yes, you later changed your mind (repented) about all that - and said "sorry" (again) to God for being sorry and vowing to ask for his help. But the point is; it happened.
I suspect the "goosebumps" you felt when you first watched, and believed, this testimony was actually the Holy Spirit witnessing to you that it was true.
The fact that you are now rubbishing it and saying that Charles is a liar, is not only sad but actually quite serious.
You will have to explain to God why you went back on your vow to ask for his help, and why you think that one of his children who is telling others about Jesus, is lying. But that's for you to deal with.
Why you would put yourself in that position, and possibly even risk God's displeasure, for something that isn't even important, is beyond me - but, like I said; your problem.