Frank Farina is determined to make the most of his "football lifeline" from Sydney FC and says lessons learned from mistakes will help him handle the hottest seat in the A-League.Farina was on Thursday appointed the Sky Blues' head coach for another two seasons, rewarded for an admirable job after joining the club in an interim capacity this season.Since taking the reins from Ian Crook in November, former Socceroos coach Farina has lifted Sydney off the bottom of the ladder and into the top six with five wins and three draws from 12 games in charge.It's a record that convinced Sydney's board to give Farina his first permanent A-League coaching deal since he was with Brisbane Roar, where he reached two preliminary finals before being sacked in 2009 for drink-driving.After that, he took time away from the game before taking up roles as coach of Papua New Guinea and a technical director of the Oceania Football Confederation.But he jumped at the chance to return to the A-League when Sydney came calling.And while Farina knows he polarises opinion among fans, he's keen to show he has returned to the A-League as a much-improved coach."If you don't evolve as a coach, that's when it's time to finish up," Farina said on Thursday."I think I've learned. I've learned valuable lessons from mistakes and you have to do that."I think I have done that and, hopefully in the next two-and-a-half years, I can show that."Farina becomes Sydney's seventh fulltime coach in eight seasons.He acknowledged the pressure and expectation that came with the role, while chairman Scott Barlow hoped Farina's signing would usher in a period of stability in one of the league's most unstable coaching positions."It's true we have had a number of coaches in our eight seasons but we're confident Frank can give us some real stability," Barlow said."It's important for the club."Barlow said the timing of the contract extension was ideal so Farina could start piecing together player recruitment beyond this season.Italian superstar Alessandro Del Piero is a top priority and Farina was hopeful the 38-year-old would soon agree to extend his stay beyond this season.But the coach stressed his immediate focus was on Sydney's remaining seven games this season, starting against Adelaide United at Allianz Stadium on Saturday."We will be looking toward next season but we're in a dog fight - we know that," Farina said.Farina said he was hoping to implement an attacking brand of football - similar to that in his time with the Roar - in the long term but said getting results was the priority."Until the end of the season, we'll play whatever type of football it takes to get results," he said.Farina has already made his mark at Sydney, signing Joel Griffiths, Tiago Calvano and Jarrod Kyle, as well as releasing Jason Culina after clashing with him at training.