Help please

A month ago I bleached my hair and used a cheap hair dye… and yeah, now I’m paying the price. My hair is super dry, brittle, and the color honestly looks terrible 😭

I was thinking of coloring it again before it fades into something even worse, but I’m worried about damaging it more.

Any advice on how to repair my hair first? And what shades would be safer or look better on already bleached, damaged hair?