Son scored 12 times in his final 14 appearances last season to earn a share of the Premier League Golden Boot alongside Liverpool's Mohamed Salah (30) with 23 goals in total.
The 30-year-old has failed to score in Tottenham's opening seven games of the season after drawing another blank in Wednesday's 2-0 Champions League win over Marseille.
Son's poor form has not cost him his place in Antonio Conte's side so far and he is convinced one goal could kick-start his campaign.
"I'm OK. If I'm honest, if I wasn't getting chances in the game I would be worried but I'm still getting chances," Son said.
"In some games, there have been unlucky moments. In some games, it has been a bad finish. This is going to make me stronger.
"This is something I can see will be an improvement because I still have a lot of space for improvement.
Spurs currently sit third in the Premier League, just one point from top spot.
"Most important is that we are doing well as a team. I'll do everything the team needs.
"In some games I'm really frustrated because if I have some massive chances and the ball doesn't go in. It makes me just laugh.
"But I am not worried about it because the team and the staff and all the fans are helping me.
"I think if I score one the confidence will be back and I hope I can go on and score more goals."
