Dyed hair

My hair is currently a wine red colour, and I almost had a scare because I have 3b & 3c curls and I had it straightened for a while and it became 2c waves which I was like, hey that's weird, my hair isn't usually that long. I prefer short hair but I hadn't gone to have it cut. I use a natural dye to keep my dark brown hair a red but I plan on making it lighter (somehow) because I want to dress up as Bee for Halloween (third time..) Or maybe have it a purple from one or the scenes when she's doing a temporary job!