Okay so I started dying my hair about a year and a half ago, I've been black, blue, red, dark blonde, light brown and dark brown- including stripping it twice too. My natural colour is a ash blonde with brown in some parts, I really want to get it back so I'm trying everything. I had a dark brown colour on my hair, with about 3 inches of my natural blonde roots coming through. I lightened my hair two weeks ago and its turned out a ginger with platinum blonde roots. If I put a light ash blonde on it will it be okay?

Just stop, you are ruining your hair. It's not healthy. Let it grow out. Cut it short if you have to while waiting. You can't lighten dark hair without some peroxide involved.

It's in good condition and still soft, I only want to know if the colour will be okay, my condition is fine, and I haven't got time to wait for it to grow out

The color can come out different depending on the color of your hair. It might not stick well if you already have dyed it lot. If you have a lot of red undertones I would give the ash blonde a try, but if it doesn't work out you would be better off going to a professional.