The purely agitation attitude is not good enough for a detailed consideration of a subject.

The purely agitational attitude is not good enough for a detailed consideration of a subject.

If something is not good enough, stop doing it.

My voice is not good enough for me to sing a song.

Don't ever feel that your not good enough for them, they are the ones not good enough for you

I'm not good enough to flip in and out of my Brit accent to my American accent.