Hair coloring>..getting dyed brown hair back to natural blonde.

i am very inexpierienced with hair dying
i had never dyed my hair untill recently
i probably shouldnt have because i had light blonde naturally highlighted hair, but i had it my whole life and wanted to mix it up
so i bought herbal essence color me vibrant and i dyed my to a medium brown color
i really like it,but i dont want to be stuck dying my hair for the rest of my life, and plus i liked it how it was, and when this brown starts growing out i want to just go back to my natural blonde. I was under the impressiion that i could just strip it and it would be back to how it was, but someone else told me that wasnt the case..
does anyone know what ill have to do to get back to my old hair>!...preferably a cheep way..? or will i be stuck stripping then dying it back blonde till my natural grows in? i dont want my last summer at home before college to be spent trying to fix thissss!!!!!

~ Deb

Hi

hi hun

i did this once, put brown over my blonde hair...i liked it but then i began to miss my blonde hair so i bleached the whole lot of it back blonde!! not the smartest idea as its now very weak and snaps and doesnt grow like it used to, but if you go the hairdressers, they can do it safely for you.
HTH xx