I just highlighted my hair, what would happen if I dyed my full head tomorrow?

I just highlighted my hair at home, with some help from my auntie. I love the way it came out, but it wasn't as noticeable as I wanted it to be. I like the color, but I think I would like to do it all over, instead of just in certain places. If I dyed my hair tomorrow, what would happen? I dint want to wait a long time, to do it. So please let me know ASAP! Thanks :)