I colored my own hair and it turned out kinda orangish! : (?
A colorist is just going to put a toner in it and you can do that yourself. You’ll need to go to a beauty supply store. I’m guessing you lightened your hair so don’t use a color remover, it won’t help at this point. Use the suggestions in the article below and give it a month or two for the color to fade somewhat and then you can dye it back to your natural color. At that time, get a demi-permanent color with a blue or green “base”. Red-based colors (described “warm” or “golden” shades) will only increase the orange tones. Demi-permanent dyes don’t last as long as “permanent” dyes but they are much more gentle to your hair.