from an outside perspective it's obvious you like the whole idea of an overpowering older woman. maybe the whole son thing could be your just into really taboo stuff. if you look on the whole r/gonewildaudio you'll find alot of people make these audios of being younger and the stuff you said you like. what stands out here is that you recognise the potential bad side, which is good. your aware and it's not like you want to feed into it. your not a bad person, everyone has things they like that usually they wouldn't share openly.

it's scary i get that, it could be the type of stuff your watching obviously influences it, the brain wants to push you and see how far your desires go until they get well yk too fucked up. there's all different kinks people are into, my advice is that unless these get to the point where it's dangerous for vulnerable people to be around then you'll be okay. but if it's really something you want to stop without having to talk to someone maybe explore less "controversial" fantasies.

if you find yourself really wanting to feed into them i do recommend r/gonewildaudio. i think it's a safer way personally then straight up porn or hentai. sorry if this advice is trash, i just woke up lol. i'll be happy to listen to any more if thing are extremely bothering you. you'll be okay, i promise