I am around 13 years old and have wanted to be a "Girl" since I was 9,How do I explain this to my mom or dad or don t tell them.?

I wish I could tell you. Where do you live? In or near a big city. Is there a gay transgender counciling u could go to?
Have they ever watched JAZZ on 📺?
Have them watch it. Then tell them this is how you have felt since 9. If u think they would disown you. May want to keep it to yourself.

Just sit down with them and have a talk

I am around 13 years old and have wanted to be a "Girl" since I was 9,How do I explain this to my mom or dad or don t tell them.? Demons grow human skin (from a sample taken during abduction) and put it on so as to look like us. Demons will invite people to be healed inside their UFOs; those who go will be like zombies after. Gov't provides demons with diamonds and allows demons to abduct people. If you're being abducted, slowly pray the Jesus prayer.
Don't panic. Demons use diamonds and souls to power their UFO craft. The bigger the diamond, the more it lasts. Demons have 4 UFO bases: 1)Moon 2)Inside fake mountain Kailash in Tibet 3)In lake Baikal in Russia 4)In Atlantis which is underneath the Mariana Trench in Pacific Ocean. There are no aliens. Nobody lives on other planets.
Airplanes that go down are hit by demons because they need the airspace to fight Jesus. Antichrist is pale with red eyes. He's possessed by Satan since he's 12 years old. He flies very fast; deceived people will say that "Christ is here; Christ is there". Sometimes, he wears blue robe over left shoulder while red robe is underneath. He wears gloves to hide long nails. He's surrounded by demons who appear as angels of light. Antichrist will trick people to believe that he can do mountain moving and resurrection (using holograms); fire from the sky is easy (considering the gases from pollution in the atmosphere).
Don't go into a UFO to be healed by demons. Green 666 is given by isotope rays on wrist or forehead when people stretch hands to receive small plastic grey card with no name on it (World Passport). Police will microchip and isotope ray people on the highways. Microchipped people will be influenced by computers to take grey plastic card; but when they do, 666 is given. Food stores will isotope ray people too. Antichrist will also release prisoners to mark people. Reject 666 at all cost because it leads to permanent hell.
If you're about to be marked, pray the Jesus prayer. Hide with Orthodox Christians to escape 666; leave all electronics behind so that antichrist's minions can't track you. Burn documents because they're from Satan. Give to charity in the name of Archangel Michael; he rescues people from temporary hell twice a year (or brings them up a level, that is, to a level with less punishment; eventually, people are freed). Feed the pigeons; when pigeons bow down, people are saved from temporary hell. Forgive me.
Source: Ruski Orthodox Christian Vyacheslav Krasheninnikov

Ok but how do I explain this to them I've tried to hide it forever but I just can't and I think the will flip out on me

i wouldnt tell them, you'll only have angry parents around, not worth it

Change your gender

As a boy we have it way better first we pee standing up, second we are way less emotional, third we are generally stronger, forth we don't get girl problems so why would you ever want to be a girl. Grant it that are better looking.