The midfield veteran has been linked with a move away this summer.
He told Marca: "What if my situation has changed? No. I am at the best time of my career, at my age, it is a special motivation for me and I am convinced that I can do so and succeed.
"Regrets because of market fluctuations? The sports maturity that I have acquired allows me to understand everything better. I regret nothing. I always try to do my best for my team, for them and for myself.
"My idea of the future? Enjoy my football, to resume as soon as possible. When that is done and we finish, it will be time to analyse the whole situation."