John Frieda Precision Foam Hair Color

I received a coupon for a FREE John Frieda's Precision Foam Hair Color in the mail weeks ago and I finally went to a drugstore yesterday and redeemed it. I want my hair to be a medium brown with some reddish tones mixed in. Kind of like this-

Pretty right? *_________*

But I am worried because this is my second time I am coloring my hair at home. The first time went horribly and the desired color didn't even come out so YEAH. I am hoping it works this time.  According to the instructions I'm not supposed to color my hair if I have already dyed my hair or if I'm going two shades lighter or darker. BUT there are strands of hair that are colored from one year ago that didn't fade yet. AND I am going more than two shades lighter. From black to medium brown. I'm nervous my hair is going to turn out green or something. D:

Anyways- Here is the kit.

It comes with the developer (1), the hair color (2), the conditioner (3), gloves and a pump which I forgot to include in this picture. Pretty neat, eh? Oh and this is how the color really looks like. It's labeled Dark Golden Blonde. 

I will be trying this tonight and I will be posting before and after pictures!