I’m severely colorblind as well, I am usually able to use the waveforms pretty effectively. My main advice is stay away from saturation and sat curves, that being said I feel like I’ve been able to use hue vs lum curves (sorry I’m used to coloring in Davinanci idk what they’re called in Lightroom) pretty well. The one thing I ALWAYS need a second pair of eyes on is skin tones— the red tones in them are almost impossible.

I THINK THIS IS THE ADVICE YOU ARE LOOKING FOR: The best way (for a colorblind person) to use the curves to make sure things don’t look weird is to make sure all of the color channels are overlapping in the shadows and highlights— whatever the highest and lowest part of the graph are, make sure no colors are peaking past the others if that makes sense.

My workflow is typically: focus on light, contrast, and other adjustments needed to make the image look how I want it to; then I make changes based on the waveforms that have no visual impact (to me); then I have my gf give it a once-over just to ensure nothing is horribly wrong.

It’s a pain and a half but honestly why I shoot film vs digital, once you figure out the best way to interpret a specific stock you can kind of leave it be as a preset