It sounds like you have anxiety about many aspects of your life. From an outside perspective, it seems like these things are not a problem in and of themselves, but only because you are worried about them. I tend to be a pessimist and have had anxiety issues for many years, so I completely understand how easy it is to fall into that thought process.

I feel like there tends to be a range of sexual preferences amongst women - straight, lesbian, bisexual, bisexual with more interest in men, bisexual with more interest in women, etc. I know lots of girls (including myself) who find other women attractive but have no desire to be with a woman. So I think the thoughts you are having are totally normal and not something you need to fear.

As for turning into a bad person while working with children, I'm a little confused as to what you mean. Do you think something about working with children would change you for the worse? (and if so, why?) Or are you just worried that you will become a bad person for unrelated reasons and therefore not have a positive influence on the children you would be working with?

There are many people who are closer with their family than friends. It's important to have positive relationships with others, but personally I don't think it matters whether those people are friends or family. As long as you are happy with your social situation, that's what's important.