Getting Hair Back to Natural Color?

I have a massive problem. In February, I went to a hair salon and dip-dyed my hair. However the colour didn't turn out as it was supposed to so I went and bought 2 boxes of L'oreal Preference Ombré kit, one that is light brown to dark brown and the other is dark blonde to light brown. However since my hair has already been coloured from chin downward the colour, yet again, turned out completely wrong.

Sadly, the dye is also permanent. Not only that, but the position of where the dye starts is completely all crooked and uneven and I absolutely hate it.
Is there anyway I get my hair completely back to its natural colour (which is a medium brown)? Also, my dip dyed hair is a sort of gingery-brown.

By Medina S.