The 20-year-old was handed a baptism of fire on Saturday as he made his Whites bow against former club Chelsea, but it was an unhappy ending for Mesca as his current side slipped to a 2-0 defeat.
"The Manager said to me that I was coming on and then he told me to be confident and play on the ball," he told fulhamfc.com. "I think it was a very big game for me to make my Premier League debut in. It wasn't an easy game to play as well as I can.
"With more time, hopefully I can show my qualities but I'm happy to make my debut and I'm looking forward to playing more games. I want to play in every game, just like everyone else, and prove that I deserve to play. I hope Saturday was the first of many appearances this season."