Middle sister gets me done?

Our relationship is actually already good so we laugh look netflix or draw something together. Everything sounds fine but the problem is that it can very well turn people off. Do you understand what i mean? So with me that happens quite often at least 3 or 4 times a day that makes me down. For example, she says that I will never make it to school because I only write 5 or have no life and all I'm all-time Zuahsue and have no friends and I should look for friends. It probably does not sound that bad to you, but I'm a sensitive person and I'm really done with that. Of course I try to "fight back" so I say something back. But she always says that she can't argue against me. So that means that I can't finish it. Or something like that. This kind of thing kills me and I do not know how to handle the situation. Just what I always do that I go to my room, close the door and start crying… Do you have such a similar experience yourself or what can you do about it?

Show her the opposite.

Learn to write better grades and not just sit in the room.

Only by talking but not acting you do not convince them.

Just hit her face and say that there was a spider> :)

You avoid it prematurely. Ignore them, do not answer back, avoid them for the time being. No common activities, for now. So she understands what she did wrong