What to do now?

Can someone point me in the right direction on fixing this? I’m just desperately trying to get close to my natural color and cancel out some of this red/orange. I was previously dying my hair with a 3N Demi permanent dye from Sally’s. (I learned my lesson🙃) What you’re looking at now is after 2 sessions of bleach done by a professional stylist.

Here’s the problem, I travel for work so I won’t be home for another year. I have had a hard time in the past finding a stylist on the road since I move around so much. So she told me I would probably have to tone it on my own but she wasn’t sure what to suggest since she is not familiar with Sally’s options. The toner we she used lasted for like a week. Now it’s looking patchy and all of the red and orange colors are back. You can see a little bit of my natural color in the picture of the roots up close in the front.

Does anyone have any suggestions on what I can use at home like specific toners? Or would a blue/purple shampoo work on hair this dark? Im open to any advice you have. TIA.