How do I get it blonde !!? 🙁

So I’ve been dying my hair since I was 14 and it’s mostly random colors but I like to dye my hair black but when I get bored I like to change it anyways I went to Sally’s the other day and the lady said I could just bleach my hair (because I want to dye it green but it was black at the time) and I was told after that I should’ve color stripped my hair before trying to bleach.

Before bleach:

Bleaching 1 time left it in for 45 mins

And 2 time bleaching

So my question is , how do I get my hair blonde ???? It’s just an orange / red color but my roots are super blonde ??