Sunday's win over Sunderland saw them move back above Tottenham into third place in the league, while they are through to the last four of the FA Cup and in the quarter-finals of the Europa League.
Asked to analyse his time in charge, Benitez said: "Maybe it's difficult to understand from outside, but I think we are doing a great job.
"People only look at results, and you need to analyse when and how we got there, and look at the overcrowded fixture list.
"With three games a week it's impossible to have the physical, technical and tactical training that you want," added Benitez, whose side will play 70 competitive games this season if Chelsea reach the finals of the two knockout tournaments next month.
"We are in the semi-finals of the FA Cup, in the quarter-finals of the Europa League and we are third in the Premier League. I think we are fulfilling our objectives."