First of all, wait to dye it. Too much dying in a small amount of time can cause skin cancer. After at least a month you should put high-lites IF you want to. You might want to completely dye it, but I wouldn't recommend it.

It should depending on what dye use use. However if it doesn't works I would recommend having blonde highlights professionally put in!
Hope I helped

if you want to lift it i suggest doing it ssowly
i for one,know to much bleach is a nono!! colour does not remove colour

No way! Color does not remove color. The only time you will get the same results as on the box is when depositing only. Not lightening. Your natural root area will take lighter because it is virgin hair and you dark will become darker from top to bottom because of the color accumulation toward your ends. It is best to remove or lighten then tone with your desire shade. Ash will probably be necessary to neutralize the warm under tones that brunette colors carry. However, it may not end up ashy since the warm tones will counteract the true results.

it would probably go ginger x

I wouldn't recommend using anymore hair dye. If you're looking to lighten it, I would suggest having a color specialist do it for you to ensure you get the right shade.

I would strongly discourage you doing this yourself at home. I speak from experience. Anytime I have ever tried to do any complicated hair coloring at home, it didn't turn out the way I wanted. Either have this done at a salon, after discussing the results with a professional hair stylist, or if money is an issue for you, locate a cosmetology school in your area and have them color it for $20-$25.