guilt from sa when i was a minor

i need help with dealing with this guilt when i was around (6) my cousin showed my porn and at the time i had no understanding that is was wrong and he had convinced me to put his thing in my mouth and it haunts me anytime i start to think about it but this isnt the main purpose of this post

when i was probably(7) my little sister would take showers with me because that was a normal thing and at that time i had a little bit of understand that it was wrong but i had convinced her to lick part of it

this is something that fills me with so much guilt and remorse i dont know how to stand it i feel like a terrible person and i feel like i will never forgive myself