MY HAIR!!!!

My hair is purple-ish but I miss that obnoxious jump scare of vibrant purple... it's been dyed for around 2 months and I used SPLAT to dye it o_o, when I dyed it purple before I used manic panic Semi-perm "Purple Haze" but that didn't last that long. What are some long lasting purple hair dyes I can purchase at my local drugstore, I was gonna snag some from a Drug Mart but I need 2 cans of it cuz my hair is long and thick. Urkkk... other than purple what colors should I do? ^u^ 

My hair is a blonde but lighter than dirty blonde so light colors sometimes work on my hair but 90% they don't lol

englisj class is so flicking boringgg uggghhhhh