I used the Salon Care Prism lites plus 30 volume crème and left it on for about 15 minutes. My overall color was lite blonde but my roots show some orange color combination. Did I use the right products? I have been going to a hairdresser but I am trying to cut my expenses by using over the counter hair products. Should I leave the product on longer or put more product on my roots? I hope you can help me figure out what I need to do.