Checking the best way to redye...

Hi all

I posted a while ago as I couldn't get bright colours to stay in my hair.  I switched to Directions and got far better colour results.

I'm now due a haircut and have significant root growth, so want to remove the colour I have now and use different colours in different places to before.

I used Colour B4 to remove the blue, wine and black colours I had, to get back to the previously bleached yellow. After one use of CB4 my hair was green,I did another treatment of it and it's still green, so I haven't tried a third since it seems it won't come out. Having moisturised it with a deep conditioner it seems ok condition wise, I will wash and condition it again tomorrow to get some condition back into it and also try to get rid of the horrible rotten eggs smell of CB4.

Having read various posts on here I have formulated a Plan (mainly thanks to Piscine!):

Wash and deep condition my hair a couple of times before having it cut, to get condition back into the hair and make sure the CB4 is out fully.
Have my hair cut on Saturday as planned.
Use a red shade to neutralise the green (fabulous idea Piscine to use a photo of the hair to colour reverse it!)
Apply coconut oil 1 hour before bleaching - hopefully just the roots not the whole head if the above works.
Dye the colours I want.

Does this sound like a good Plan please?

Thanks in advance!
Debbie