I dyed my hair a medium copper brown and about a day or two ago and I want it lighter if I go a light brown will the color out different will it mess my hair up I'm try n to get the color out but it seems like the color came out even more

I dyed my hair a copper brown a day or two ago and want to go lighter will the color come out weird I don't dye my hair all the time this was the first n over 3 yrs will it mess my hair up