Yes. Your voice will change during puberty, but will reach a pretty permanent tone as you head into adulthood. That being said, certain lifestyle choices (like smoking) can cause your voice to change over time as well.
I think line 4 is just to give the batch file a title. To change the folder name from "Private" to something else, you need to replace the word "Private"...
I recommend logging into Google and de-register your phone from your account. Your backup account which recorded activity may help with this. Scroll back and see if any actions have...
Smile and make eye contact, then speak from the diaphragm (in your stomach) rather than just speaking from the mouth. Imagine how you would need to speak for people across...