SOMEONE WHO KNOWS ABOUT HAIR DYING PLEASE HELP

UPDATE Okay so if you have done your hair at home, or know about it please comment I have no clue what I am doing.

So I got my hair done a while ago and asked for an ombré look, I didn’t get that at all my hair is half brown and half blonde but I’ve just been dealing with the over grown hair look for a while. I would like to try something new with my hair now, but I have no idea what I am doing. I would like to dye my hair purple where the blonde is if possible and I kinda want it to blend together with the brown in my hair. I went to Sally beauty and bought these products after asking the girl working there what I would need. Here are some pictures if someone can explain to me or any advice I would appreciate it, thanks!

My hair now^^

Products I bought ^^