Silly question probably, but, is your half brother your stepmom's son or a child of your father's from an altogether different marriage? I mean, I know that raising an autistic child (or any child with health issues) is anything but easy, but if this is her son, she is just as responsible for the care of him as your dad is, especially if she is going to remain in the household (which is a very odd arrangement to agree to.)
As for the girl you like, Tessa, it probably is likely that she really doesn't feel she has time for a relationship or isn't ready to be in one. She may be struggling to keep up with her classwork, just like you are.
I hope things get better for you soon. You shouldn't hesitate to tell people at The Ledge what's on your mind. It helps to get other perspectives on a situation.
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