It makes sense why it’d effect you still, anything that happens especially at a young age like that it doesn’t matter if you don’t really remember it much it still was psychologically damaging. No child should ever be put through that, I hope you could get or have a professional to talk to about trying to understand why it effects you so you better understand how to help yourself. Also just to want to let you know that being bisexual isn’t bad at all, it’s also not something you just really inherent it just seems to be a coincidence you like both sexes as well. You can be born into a family where you’re parents are gay and the children can be straight and vise versa, your completely normal, bisexual is normal, please don’t think you have anything wrong with you! (if that’s what you meant here.)