Kenedy has posted a cryptic message on social media site Instagram.
The winger, outstanding for Newcastle United last season, has struggled for form after re-signing on loan from Chelsea.
Kenedy didn't even make the bench for last week's 1-0 win over Leicester City at the King Power Stadium.
And the 23-year-old has posted a reflective message ahead of the club's final four Premier League games this season.
The post read: "You learn more in failure than you will ever learn in success."
Kenedy – who could be involved against Southampton at St James's Park on Saturday – has only started 14 league games.
The Brazilian's only goal for the club this season came against Manchester United in October.