Watkins was speaking after their preseason win against Villarreal.
Both the England international and Emi Buendia struck for the 2-0 win, with Watkins later saying: “It was a really good game.
“Obviously different conditions for us out here, really hot but enjoyable.
“I really enjoyed the game and it’s been a good pre-season for us. Over in Nashville, against Roma and Marseille there have been some good tests for us.
“The last game here tonight has been positive, so that stands us in good stead for the weekend.”
Foundations set
He continued: “Pre-season is crucial for yourself as a player. It sets the foundations for you going into the season.
“Last season I didn’t have that. I didn’t play in any pre-season games so I was trying to play catch-up.
“For me, it’s massive to play these games, feel good, get your confidence up and go into the season all guns blazing.”
Villa kickoff the Premier League campaign on Saturday against Newcastle United at home.
Watkins also said: “I’m just looking forward to being back at Villa Park as we haven’t played any pre-season games there.
“It’ll be nice to be playing in front of a full Villa Park again - I’ve missed that feeling.
“We’ve got big targets for the season and it starts against Newcastle on Saturday.”