On loan from Real Betis, the Argentine wants to win trophies with Spurs, who advanced to the Champions League knockout phase with a win over Olympiakos on Tuesday.
The 23-year-old said: "We know that a club with the stature of Tottenham Hotspur has to aim high, has to aspire to great things. We know that in the league we have got to finish as high as we possibly can.
"It's been a big step for us, qualifying for the last 16 of the Champions League, so that's a real boost for us. What we're hoping now is to put a couple of wins together and if we could get on a longer winning run, that would be great.
"We've got a very busy period coming up, with the festive programme, which we know is going to be tough and complicated. There are some difficult games in that period, but we are very positive and up for it.
"It's a fantastic stadium, probably one of the best training facilities to be found anywhere in the world and we've got supporters who back the team and cheer the team on at all times - that's all that you need at a big club to succeed.
"Our aim has got to be to keep improving and we know that with being a footballer and representing Tottenham comes with great responsibility. It's through hard work that we can continue to improve. Aspirations for a club like this are always high."