I had my light brown hair streaked with blond highlights and caramel lowlights, and then a toner (the first time toner was used) was applied to "soften" the look. However, it now is too dark overall, and I'd prefer to have the lighter, blond streaks back. Is my only option to go back for more blond highlights? Can I try using really hot water to wash my hair and diminish the toner's effects? Any suggestions are appreciated.