Im not quite sure I fully understand your question. Are you trying to find out how to tone the warmth out? If so, I wouldn't lighten anymore (even though it may need it). Make sure not to over condition as this may make the hair too ;imp and weak by over proteinizing. An ash blond will help to cancel some warmth however if it is as bright as it seems by your picture, you will probably still have some warmth left after toning. It will definitely be more toned down and not so brassy but it will not ne a neutral or ash based tone either.

but @toxickandy I got told conditioner is what your hair needs when it's like mine and yours.. x

Cut it and start over. You hair murderer.

oh yes i have done this many a time
i suggest not conditioning it for a week,just leave it in a bun
it may feel very stringy so put no pressure on it

If the reason you're doing your hair at home, is the cost- look for a Cosmetology school on Yelp for your area. Their prices are cheap and you'd get the expertise of the experienced instructors.

yea nourishment and for ash blonde- silver shampoo for putting down yellow pigments

but does my hair look that badly damaged I got told it doesn't and I also heard someone had there's bleached 7! times and yep defiantly lesson learned x

Oh dear, I am very sorry. Lesson learned I am sure. Bleaching hair is a very serious deal and should only be done by a professional. DO NOT PUT ASH BLONDE ON YOUR HAIR. The result will be army green. You need to go to a salon and have a professional tone it for you. Yes your friends are right ash will counteract the brassiness however at this point of damage you need a professional to mix and apply the correct ratio so you will not turn swampy army green. She will also be able to recommend the right treatment and conditioners. Be sure to use a keratin based conditioner. Keratin is hair food and right now your hair needs nourishment.