Fletcher scored in the Hornets' midweek Carabao Cup third-round defeat to Stoke City.
He told the Watford Observer: "I haven't had any minutes yet in the Premier League.
"All you can do is, when you get the opportunity to play, try and impress. I don't think I played particularly well tonight but getting on the scoresheet can always help so hopefully I can keep pushing. Obviously we're out the competition so it's disappointing in that respect, but it was good to get another goal.
"Obviously the games now are just Premier League until January, but all I can do is, in training, keep trying to impress, keep scoring goals and if I get 10 minutes at the weekend against Newcastle, try and make an impact."
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