Oh man!
That's wretched. Really. What is it with fathers and thinking "it's all just a phase?" because of that ******** attitude I've been living with SI for nearly ten years and I'm scared of getting close to people.

You don't need to end up like that.

Your mother should know that your father's opinion is against her better judgement. That's terrible she's going to just let it go.
Why don't you try talking to a school counselor? Explain to them your situation, and the one with your parents. You obviously need help and you can find it. Try sending a question to the "ask the therapist" columnists and see what they have to say!