The Colombia international joined Inter from Porto in January on a six-month loan deal, but he has not yet made his Nerazzurri debut after arriving at the club with a calf problem.
As reports suggest that Guarin could feature for Inter in Sunday's home match against Atalanta, the 25-year-old admitted that he is eager to go out and prove his worth.
"My team-mates have been a huge help over this time, as have the fans and the management" he told Inter Channel. "I have a good rapport with everyone.
"I am here on a six-month loan, whether that is extended will be up to the club, but I am relaxed and all I can say is that I will give everything to show people what I can do.
"I am happy and I feel good. I will soon return to action, I am nearly ready and I hope to be at the level expected by a club such as this one."
Italian sources have suggested that Inter coach Claudio Ranieri could be replaced by former Porto trainer Andre Villas-Boas at the end of the season, but Guarin was cryptic when asked if the Portuguese was the right man to guide the club.
"I have got no idea what will happen in the future, but at the moment Inter still have a coach and we will keep going with him," he noted.
How do you stay up to date with football when on the move? With http://m.goal.com – your best source for mobile coverage of the beautiful game.