Hernandez was on the scoresheet in victory over West Bromwich Albion.
He told the South Wales Echo: "I had some good games last season, but this year I think I will be better if I have more regular games.
"I think I can help the team by scoring more goals and scoring here and having this victory is very good for my confidence.
"I'm not sure how many goals I will score, but seven or eight goals is good for a midfielder."
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