I'll try and put this into some perspective for you, Pte Allen.
Would you presume to wander into the Hasty P (yes, I know what that is, and several past and present members thereof) Officers' Mess and/or Warrant Officers' and Sergeants' Mess and start lecturing their denizens on tactics?
That, essentially, is what you have just done. While we dispense with rank here, this site is still run as a military environment.
You would do far better to take the advice given, stay on listening silence for a while, and absorb the information, knowledge, and wisdom found in this forum. Feel free to ask questions if there's something that you do not understand - after first, of course, exhausting the Search Function. You will benefit from that greatly and, over time, will find that you have something useful to contribute - and we will glad for it. After a while, too, you'll read posts from other young know-it-alls, and understand what this is like for us.
We are not unsympathetic. We were all seventeen once, but most of us have been to a few places and done a few things since then. You are entirely welcome here, and will be accepted totally, so long as you stay within your lanes.