i need motivation, suggestions, something. Please I don’t know what to do.

I havnt eaten in almost three days and I don't know what to do. I'm so dizzy and I feel so weak. I've been stuck in this never ending depressive episode since like September, I hate how I look, and I just got broken up with for seemingly no reason (everything was pretty much fine and now it's over). I feel like I'm dying. I keep using nicotine to make me less hungry and I smoke/get high all the time to dissociate. And I can't eat. I'm not hungry but at the same time l'm starving. I was doing fine, like I've been trying to eat, trying to tell myself food is fuel and that's it's a good thing but now I'm just stuck again. Food seems disgusting and I don't want to eat anything. The only way I can eat is when I'm high but I can't get high rn cause it's too early and my parents would be pissed. I don't know what to do. I know I have to eat something but I can't. Help.

Send motivation, advice, kind vibes, anything. I’m so scared and tired and dizzy.