Hair Color\Cut

Okay My Hair is Down To My Mid Back And Is Natrual A Black Color [darkest brown].I Want To Get It Cut Nice And Dyed.Purples My Favorite Color But It Doesn't Show Unless Im In The Sun.Also Do You Think If I Dye It Purple I'll Look Like A Purple Monster With Purple Hair,Purple Shirt,Purple Tripps?Also I Have TO Bleach To Add Color.