Still a mystery

So when i was like 8 i was watching porn in the living room (my living room and kitchen are in the same big room) so it was really dangerozs to watch it there since my sister and mom where always ther but i kinda never got caught. And i never knew anything about history (i was watching porn on youtube) and so i never deleted it. And one day i woke up went to the computer and SAW MY YOUTUNE HISTORY OPEN i was so confused like why is my youtube history to be seen who saw it?? Tf happened. And to this day i dont know who opened my youtune history but i think its my mom.