I have light brown hair I dyed about 5 months ago and I want to go blonde so can I do this with the kind in the stores I tried the extra light ash blonde and it just lighten a shade ? So what color can I get ? My natural hair is gray a silverly gray and pepper type so will the blonde mix in with the gray ? Any help I thank you :)

Any time you are trying to go lighter from your current hair color, it is always best to go to a professional. Lightening hair is a completely different process than normal coloring, so the potential for color disasters and damaged hair is high.