After beginning the Champions League campaign with a surprise home loss to Basel, Chelsea now lead the pool following wins away to Steaua Bucharest and Schalke ahead of the return match with the Germans at Stamford Bridge on November 6.
Mourinho said: "After the first game we were last, because we lost at home, and now we are top of the group.
"Because of my experience I was not in hell after the first game and I'm not in heaven today. I'm calm.
"I know we have two matches at home (to come) and I know normally we are going to get enough points to qualify.
"In this moment, after six points, we can think first about qualifying, but after that, maybe, we can also think about finishing first in the group. That is what we are going to try (to do).
"We were under pressure after the first game, after the second game we found a balance and today, after this victory, we are in a good situation."
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