While you wait for your layers to grow out, maybe you could try some pomade or wax or something like that before you braid to help your layers stay and not pop out of the braid so bad. I am also growing out layers and love braids but get really bad braid shred. The other day I smoothed some raw cocoa butter through my hair before I braided it and it actually helped. I just used the cocoa butter because I already had some laying around that I use to make lotion, but I imagine some kind of pomade that's a little sticky would work just as well. Good luck.
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