Blonde? need help.

k im making this short and to the point.

I naturally have strawberry blonde hair and I dyed my hair black last march. i dont want it anymore.

I've tried a few methods my aunt thought *might* have worked on my hair ..but with no results. now she's telling me it's impossible to get my hair back to blonde. My friend's hairdresser told me I should have just been able to bleach it though, or some kind of colour stripping kit can rid it of the black. my aunt did all these things and I have my reasons to believe that she did something wrong.

my questions: is it impossible? if not, What is the best method to getting my blonde hair back?

thx in advance.

i didnt plan on doing it myself.. but thanks. I mean, it's going to cost a lot either way, doing it myself or getting it done.. I just want it done properly.

Ah, my hair's already damaged from all the times my aunt bleached it. I just don't understand it, if she's already done basically the same thing twice, how come my hair never changed in colour? She's a hairdresser, she told me it would work, and when it didn't she said 'it's impossible' and left it at that.