I would highly recommend avoiding the flat ironing like the plague. It's just gonna compound the dye/bleach damage. Being extra gentle, and doing more PT/DT's will help, maybe not immediately but over time.
I know it doesn't help now, but for future reference never EVER bleach out a bad dye job. There's a product called Vanish, I blogged about it, and it's awesome for removing color. It doesn't damage, it shrinks the dye molecule and you just shampoo the crap out of your hair to remove the dye. It dries your hair out to shampoo it so much, but it's easily remedied with DT's.
How's My Hair?
Review: L'Oreal Evercreme Cleansing Conditioner
Review: Yes To Carrots Nourishing Shampoo & Pampering Conditioner + 35% off at YTC.com
3a-b, fine & medium texture, medium-high porosity from years of damaging. I'm addicted to changing my hair color.
Cleansing: No-Poo, Elucence MBS, YTC Poo,
Conditioner: One Condition, JC Too Shea!, YTC Condish, Elucence MBC, Joico Daily, KCKT
Styling: KCCC, LALPS, BRHG, Biotera Gel