When I was around 13-15 I believe I was doing Ghusl incorrectly. I was baligh at this point and would enters states of Janaba. At the time, I thought the head must be washed after the body. For years I’d perform it this way, due to my ignorance. I wasn’t actively not trying to learn Islamic law, I just didn’t exactly know where to find valid information, and the method I had been doing was what I remembered my teacher had told me (I misremembered). Looking back, i think my ibadat will probably be accepted for moments after I exited janaba using ghusl, because I usually performed the incorrect kind of ghusl multiple times in a row, which would lead to a complete, correct ghusl being done. I also didn’t know the ruling out of ignorance, and I’m not certain that it was out of negligence. Please let me know if my assessment is correct.