"I've got an opportunity now to play more games than I did last year," the former Feyenoord player told Villa's website.
"I always try my best for the team and also to prove myself because I came here to win games and be very important for the team.
"I had a good pre-season. Last year I had a hard time. I went to the African Nations Cup and came back and had a few injuries. I was struggling a little bit.
"It was my first year in the Premier League and I needed to feel at home.
"I feel very good and I feel fit - that is the most important thing."
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