Still feel guilty :(

so when I was 6 yrs old, my 12 yr old neighbor would always talk about being horny and humping (masturbating). she always wanted to with me. never told anyone! well when I was 12. I did the exact same thing to a 5 yr old, we humped. only once tho. we both girls. I knew the kid masturbated. I regretted it almost instantly and have always felt guilty about it to this day. I feel dirty and like I'm a liar!