Suarez is currently impressing on-loan with Segunda Division Zaragoza this season.
"Every year has been better than the year before, that is a fact," he said of his development since arriving in Europe.
"So in that way I am very happy and I can see that I am improving and developing my game, I can also see I have more room for improvement so hopefully there will be more steps up to take in the upcoming years.
"I have two more seasons contracted with Watford, it is up to them, I certainly feel prepared to play in one of the top leagues in Europe after this season. Premier League, La Liga, Serie A or Bundesliga, I am confident I am ready for that move in the summer."