Hello,
i have dyed my hair dark brown for as long as i can remember,
(since i was 15 i think)
with my natural colour being a lighter mousy brown i was wanting to see how it looked to be my natural colour all over,
after asking two hairdressers they advised that i could just get a DIY kit to strip the colour and put a more natural colour through till it grows out,
(i have very long hair)
so i did,
now i'm currently sitting here with blonde roots and dark brown/red ends. HELP!!!
i'm not sure where to go from here and not wanting to leave the house till i know what to do.

i have read online that i have to just keep going over and over the dark bits till all the colour comes out, but am not sure.

you need to get yourself to a hairdresser asap

You cant fix this using a box colour yourself, you need a good hairdresser.Please dont put anything else on it, as you will make it worse and harder to sort out.