Most Helpful Girl
Damn girl, you need to lay off the chemicals and heat for a while... long as possible. Seriously, my hair was collar bone length, kept breaking and wouldn't grow at all till I learnt to take care of it and now my hair is halfway down my back like past bra strap length, and I'm still growing it.
Dye your hair close to your original color so you can start growing out the damage. You can never really repair badly damaged hair, you can only buy products that hide the damage, once it's damaged you're fucked till you grow out the damage.
Over the past few years, I've learnt so much about hair and hair care so that I could grow out my own damaged hair, so if you could tell me a little more about the condition of your hair, I think I can help you. Also if you know your hair type.
But either way, the main thing right now is you need to care for your hair. Deep condition weekly and do deep treatments to, I know it sounds gross, but don't shampoo daily, just conditioner wash and only use shampoo when your hair needs it shampoo dries out your hair, and dry hair just gets damaged and breaks so much easier. Google co washing. Use leave in conditioners to, because I'm sure the bleach has probably left your hair needing more moisture, and leave in will help with that. Also, to prevent breakage while your hair is in this weak bleached state, you can try to look into low manipulation hair styles that will minimise friction on your hair which causes breakage, and right now, the state of your hair needs as little manipulation and friction as possible.
I don't know your hair color, but there are certain colors that even show up on black hair with no bleach if its done a certain way, so look into that to.
Sorry about your hair, but don't worry, it's hair, it'll grow back, damaging and bleaching and heat damage etc... It's all part of being a girl I guess and it's all things that are easily fixed.