I suppose the slogan of my bio confused you so here is an article that describes the some of its usages and etymology 👇

https://quoteinvestigator.com/2015/02/21/impossible/

I came across to many of those listed in it throughout my life and maybe that's why I cannot fully recall when and which one of it was the initial but the only thing I remember is that I loved it from the moment I read it because it kind of resonated deeply with my soul and it has became my motto since then!