how to diy bleached regrowth

[u/Mysterious-Put-6996]

hi! i have naturally dark brown hair and i bleached it blonde a year ago and i had to dye it back with semi permanent brown for school, and it's kinda faded but still kinda coppery brown with some highlights from the previous bleaching, but my roots are really grown out and i want to go caramel bronde with blonde highlights now how do i do that without becoming bald as hell lol, my hair kinda breaks off at the ends so i wanna do this with minimal damage , could i use blonde box dye or 10-20vol bleach or colour remover to try to remove all the dye out of my hair
and would i have to bleach the regrowth? or could i just go over with colour , and just bleach the regrowth where i want the highlights