I dyed my hair from light blond to redish brown but mu roots turned red brown and my ends are dull brown I tried dying it twice and the ends fade back to a dull brown it doesn't match the roots What do I do?

Hi :)
Ive had the same problem myself recently, my hair is a light brown colour and I tried to apply a sort of bright reddish colour, and I had the same result! Fluorescent roots, and the bottom of my hair just seemed to stay the same boring dullish colour... I put a few more on and it didn't help, and in the end I went to a hairdressers and asked them to do it for me >>> I waslked out the shop woth perfect hair colour, god knows what they did! Also, you can also take the hair colour that you want in with you, and ask them to put the colour on ffor you and pay them a fiver or something ;) some hairdressers get a bit arsey about it, but some are more than willing to help!! :) hope I helped! Xxxx