Ozil backs Madrid to eclipse Barça
Ozil, 22, moved to the Bernabeu last summer from Werder Bremen as Mourinho started to shape the team he felt could challenge for honours and the German international now reckons that time has come.
"Real Madrid have made a lot of signings in the last couple of years, but you can now tell we understand each other on the pitch," Ozil told Kicker magazine. "We are much stronger. We've taken a step further compared to the previous campaign. I want to win every title.
"We would have liked to win the Spanish Super Cup, but what matters is we can compete at a really high level."
The former Schalke playmaker feels he is also improving on a personal level and is hungry for success with Real. "I'm in very good form and feel more prepared than ever before," Ozil said.
"The pre-season stages in China and the US were tough and beautiful. I had learned a lot at Schalke and Bremen, but it's a completely different ball game outside Germany.
"I'm very happy with how things have turned out for me. I feel great at Real Madrid and, obviously, for playing on this team.
"It will be very interesting to watch Real Madrid play in La Liga, the Champions League and the Copa del Rey this year. We want to win all three titles and I'm sure we can do it."