Attracted to young girls - Want help

Hi, I'm new here.

I'm male and in my late twenties. I find myself sexually attracted to young girls 8-14. I don't want to be and I want to seek help or look for any suggestion of self-help methods. Whilst I've never touched a young girl, never would, I'm concerned that if I go to my doctor I would get in some kind of trouble but imagination isn't illegal, but I don't want to end up on some register especially when I haven't nor will I ever do anything illegal.

I've had these thoughts for several years now. I was sexually abused - only ever orally - by my late father when I was in my early teens and perhaps my feelings stem from this? Although I don't have any feelings towards males. I'm still attracted to women my own age and have been happily engaged for the past year and half.

Are there any books I could read? Or organisations (London based preferably) who are supportive of those who seek treatment for this?

Thank you.