Danielismyname,
I agree with MusicMaker1 in that your voice doesn't sound too monotone, and, in general, you don't seem "strange" at all to me. If I saw you in real time, I would probably never suspect you were autistic; I would think you are just very introverted and shy, and that's it.
I have never made any videos of myself on purpose (not that I remember), but I have some which have my voice in them. I made this little one spontaneously when I came to visit a friend, and it turned out that she had a new cat.
The slower, more level voice in the foreground is mine.
Me: "Kitty....kitty..."
Friend: "She's rolling around like -"
Me: "The better the motivation for moving out sooner, then."
Friend: *odd little laugh*
Me: "If not for the sake of myself, then at least for the sake of the cat."
(we were talking about how I might adopt her cat when I start renting a room or apartment of my own)