Spurs have won just two of their last six matches in the top flight, but only face one other team currently in the top half of the table in their last four games.
The striker told the club's website: "As we approach the end of this season, we have to keep our heads right for these last four games and win them for the fans.
"We have had some very good performances this season but we have had too many poor ones as well and it's important we learn from our mistakes next year.
"It's up to us to put everything into these remaining games, pick up four wins and give them renewed hope and enthusiasm for next season."
Tottenham face relegation-threatened Fulham tomorrow lunchtime.