Graham told the club's official website: "I love scoring goals. I'm a centre forward and I'm sure every centre forward in the country would say that.
"It hasn't been happening for me in the last few weeks so I paid the price by getting dropped and deservedly so.
"I think that made me a stronger player and since then I've been doing extra training sessions to try and force myself back into the team and it worked.
"Now I'm delighted to get the goal on Saturday but I'm disappointed we didn't win the game."
And Graham is confident Watford can spring an upset when they welcome Championship leaders Newcastle to Vicarage Road on Saturday.
"Newcastle is a massive game - it's one that every team looks forward to in the Championship. They're a very big team in this league.
"We can't wait for them to come down to Vicarage Road where we are very good and strong so hopefully we can give them a difficult game and take all three points."