Said that I blew it like Turquoise
Blew it as in ruined it. Also the color turquoise is a shade of blue.
And another possible reference which is a lot more obscure (but cannot be discounted because it’s Lupe) Operation Turquoise which ultimately did not work as planned, its cover was blown by the Hutus.
To help improve the meaning of these lyrics, visit "I Don't Wanna Care Right Now" by Lupe Fiasco (Ft. MDMA) Lyrics and leave a comment on the lyrics box