how do i fix my hair after damaging it?

ok so, i dyed my hair black a few months back and my hair has NEVER been the same since. my hair started falling out a little bit when i started washing it, it feels dry when its wet? and in general my hair is just dry as hell but now its getting to the point where its so hard to brush it.

is there anything i can do to fix the damage i've done to my hair without cutting it? if i have to cut it, it's not that big of a deal but i'd perefer not to cut my hair right yet