If your natural hair color is quite a bit different from what you've got in there now I'd recommend dying it again, but this time back to your natural color. You can wait and save up until there's a couple inches or you can do it yourself with a box. I promise it's not as hard as it looks, I've been dying my mom's hair since I was 11 and my own since I was 14. If you're dying it your natural color it'll be hard to mess up, you probably could even get a way with a temporary dye.
I have really dark hair and have done both bleach blond (looked terrible) and bright red and many colors in between and whenever I was sick of the color or it started growing back and looked bad I just dyed it back to it's natural color.