Well the gal who does my hair wasn't getting it the silver I wanted, she only added small streaks and I have a lot so I embarked on fixing it myself
First I had to bleach my long colored hair as white blonde as I could get it.
Then I ordered titanium blonde dye which they don't sell here in the U.S. so it came mail. After giving my hair a rest I added the titanium and now I'm at a silver I don't have to color again.