How to go from Golden Blonde to Ash Blonde??

Hi all been a while since I posted with my hair queries (as I left my hair alone after all the damage caused) but I am now trying to achieve an Ash Blonde balayage (in the safest/least damaging way possible).

So here is what I have done so far:

. Bleached my ends (my hair went deep ginger)
. Toned with a purple directions toner (I think) and nothing happened
. Made my own blue toner (blue hair dye and conditioner) and it went slightly ashy-er but not much
. Bleached again (a month after my first bleach may I add) and it is now like this (pics attached)
. I have also been using purple shampoo which I'm not sure if it's doing anything??

I really like the colour it's at now, but I just want it ashy-er (lol) I know I may need to bleach again (it's been about 3 months since I last bleached it) but then in terms of toner I have no clue what would be the best for me because my hair's not really orange, but not really yellow. Please help, I've tried every YouTube video but nothing seems to relate 🙁

Thanks so much xx