Troubled actress Mischa Barton has revealed she suffers from depression, but is remaining focused on a positive future. The 24-year-old, who spent time in a psychiatric hospital last year, says she does suffer from depression but tries her best to be happy. “I’m by no means mentally unstable,” she adds. “As much as I get down, I am an upbeat person. People always think of me as a kind of a light in a room.” She has also talked about her desire to have children in the near future, and her plans to stay out of the limelight in preparation. “I’m growing up and getting older, and probably in four years I want to have kids. I want to think about what I’m going to do between now and then to make me the best person I can be.”