The real problem with flat ironing and bleaching is that the damage is cumulative. If you have very short hair, you may not see all that much damage because you're continually cutting it off, but anything below shoulder length is likely to be in trouble. And, as Firefox said, damage is permanent. The best you can do at this point is mitigate the damage by treating your hair as gently as possible--avoiding using shampoo too often, COing instead, and protein and moisture treatments. Typical kids' shampoo, btw, isn't less harsh than any other SLS type shampoo.

Elumen is a demi-permanent color that is pretty gentle. I used it a number of times on waist- to hip-length hair without damage, although I always did a moisture treatment after. But what you really need to do is just grow out and trim off the damage.
3a/b, fine, normal porosity, high density

Wash: CJ Daily Fix, As I Am, TJs TTT
LI: Suave TC + CJ CCCC, brushed through with Denman
Styling: Smooth in LAL Wet Look gel, scrunch, and plop 10 minutes, then add a little more gel, cover with silk cap, and sleep on it
Refresh: 3:1 water/Suave mix as needed