Well, I could say a lot about parents like that as I've seen plenty of them and they tend to act crazy enough for me to think that there's something wrong with them. Either something physical like hyperthyroidism or maybe they got something wrong with their head, paranoia or schizophrenia or something. But I don't think you want to hear all that.
The truth is that you are having symptoms and there's a reason for that. Even if it would be you "just" overreacting, you're still feeling it and suffering. That's why it has to be dealt with. And protip, usually if you're wondering if you're overreacting, you're probably not. The people who truly overreact without a reason rarely doubt themselves there.
If you call some help line, they won't know who you are or where you live. There's no way they could tell your father. But they could tell you more about your rights in your country. As for school, I always suggest people to at least do the minimum they need to be able to get employed easily. Yeah, >implying you can get a job easily with this job market, but cut me some slack here. Don't want the only reason you can't get the perfect job for you to be some piece of paper you're missing.
Sure, I can give you a schedule. Every day you must start your day by saying good morning to tupper. You could also tell them what you're planning to do or what kind of a dream you saw. You must also spend a certain amount of time with your tupper every day, how it's spent doesn't matter. It could be visualizing their form or talking to them about something or touching them or whatever, anything you want to do at the moment. How much it is would have to fit you, but I'd say something like an hour each day has to be spent with your tulpa. You can split it into smaller sections and do something like 15 minutes every forcing session, but what's important is that every day, you do an hour. At least an hour, you can do more. And that's the only way you can skip a day, if you know you're gonna be busy an entire day at some point, you're going to have to force the missing hour on the previous days. If you don't do an hour and haven't done the hours in, you get a big frowny face sticker. And every night before you go to bed, you say good night to tupper. You could also tuck them in and tell them what you want to do tomorrow or about your day. Go do it fgt.