The Portuguese coach, who guided the Blues to two Premier League titles during his first reign, returned to Stamford Bridge in the summer, nearly six years after leaving the job.
In that time, he added to his haul of trophies with Inter Milan and Real Madrid, but would rank winning the title this season as one of his greatest accomplishments.
"I always said my job this time would be a different job profile, I do my work the best I can," he told reporters. "I came here to give my best, knowing that this team and this squad couldn't be ready to achieve what people probably think we have to achieve.
"I'm at the stage of my career, probably the best moment of my career, which is being still a young manager but already with years and years of experience, where nothing is new for me in football.
"Everything that happens to me feels like deja vu. It has happened to me before, for sure. I'm cool, I'm normal."
The Blues, currently third in the table, play host to Southampton later today.