I think it's a really good start - there are a lot of details. She needs to be fleshed out but that will happen as your story develops.
About her view of girls and girly things: I can see why other people have a problem with this, but I think it can work and still be a good character. This is a fairly common thing especially for younger girls, so it is realistic - you just have to flesh out in your story *why* she hates girly things, and prefers to be friends with guys. "Girls start drama/are jealous" is too shallow, people are more complex than that.....most girls' ability to relate to other girls and guys goes back to how they were raised, their relationship with their mother and father, and how they view femininity (are girls "weak"? is femininity beautiful? pros and cons?) and masculinity.
I would def go into her history.....what friends has shse had, was she bullied by girls, etc.
Anyway, good luck with your story! I wish I could find the time to write for fun again (I mean....I could but, lazy).
4a?? Maybe 3c...some 4b??? No clue
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