where's my hair dressers at !?

So I went from 7 years of dyeing my hair dark Brown to trying to go back to blonde. I did 3 bleached myself and got it up to a copper orange and then I went to a hair dresser that did a "color correction) and it literally looked the same with a couple highlights. So I had 4 different colors going on 😣 so I bleached it myself again 3 weeks later and I have gotten it to a yellow and white in parts 🤔 I'm unsure of where to go from here.... what do I do to get a pretty blonde ? thank you !