I need help.

So, I really need help. My life has been shit, actual shit, for around 3 years or so. And I'm afraid i wont make it at the end of this year, and YES I know the year just started, but I'm serious.

context: I'm a teenager who has a hard time going through life. I'm showing signs of depression(I do not claim to have it), and I've been suicidal. Ive been struggling with my mental and physical health. It's really bad.

I'm disgusting. I haven't showered for weeks, my hair is greasy, and my teeth are just EW. And my mental health is even worse. And my social life and school shit, such as my grades, are awful... I've almost failed school 2 times, and idk how to study bc of my mental health. I really need help. I can't focus, I have BPD, I have an addiction to maladaptive daydreaming, and I can't focus. I told my teacher about my social anxiety, and he told me that we're gonna talk alone on monday which is great. And my dad told me that he's gonna take my phone away(bc of my grades), which is okay, but at the same time idk...Am I addicted? Or is it my fault I'm like this?

My parents are great and all, but they aren't treating me like a real person. Even when I do fix my grades, they still hate and shit-talk me.

I really need some advice on how to take care of myself, how to get friends, how to socialize, and how to get better grades(I NEED). I even talked to my boyfriend, but that didn't go so well. Like, I really want and need help.

I even talked to my school therapist, but my dad found out, and he was mad.

So if you have advice, please tell me, and thank you so so much!!!