I have a hair crisis!?

I had balayge hair. so my ends were caremel blond and so were some of my mid shaft hair sections. but then i dyed teh top half of my hair with semi permanent brown hair dye and the bottom half i bleached to an uneven blonde (because i didnt have enough bleach that time and i was too lazy to fix). i want to try and reach an all over blonde. how should i attain that.

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