lighten dyed hair if I strip it first -lv

by Kris
(LV, NV)

Alright, so my original color is black. It's currently dyed to a medium, golden, (red tinted in pictures) brown with face-framing highlights. Both base, and highlights from a box dye-store brand.

My goal is to go lighter; asher, closer to ash blonde (or as my sister would state, a very light brown). I want to get rid of the red hues completely.

My question is if I strip the color (with Colorfix), and dye my hair with a blonde dye, will I go lighter?

My understanding is that hair dye cannot color dye that's already on the hair shaft. And so you have strip the shaft of the color, and input a new one to fill it in.

My hair is already lightened with the brown (it's not a dark brown), so if I strip, of course it won't go darker (unless you oxidize it or whatnot?) but it'll be the lightest its been with the current dye. (Does that make sense?) Now that the shaft would be raw, can I lighten it some more with blonde dye? (I've done ash blonde before, and it brought me to a lightened brown also)

My current dye:
Base: Loreal Paris Feria, Hi-Lift Cool Brown (B61 Cooler Shade)
Then dyed over the roots with, and also did highlights: Loreal Paris Couleur Experte Express (8.3 Warmer, Dulce de Leche, Med Golden Blonde)

Of course, my hair isn't the exact shade, but the Feria did lighten it considerably.

Experience:
ColorFix: I've used this before, so I can say I've sort-of experienced with stripping.
Ash Blonde dyes: I've also used blonde dyes before and it's given me a medium, lightened brown (in the light/sun).
Blonde: I have actually been blonde before (salon-done). An actual bleached blonde, with ash chunks. And I loved it!
Hair: My original hair is an Asian Black (not to be prejudice or anything!) and I've been coloring my hair since I was ten ;)
Salon: No, thank you, I've gone before, but it's expensive!

Thank you for reading this overly long detail! (I may have repeated myself a few times)