Jorja Fox fears leaving TV hit CSI will be the biggest mistake of her life. The 39-year-old actress is quitting the show after seven years of playing forensic scientist Sarah Sidle - but she admits the big step could just be a mid-life crisis.

Fox says, "I've been thinking about leaving for a year and a half. I had to get up the courage. Maybe I'm just having a midlife crisis. Maybe this will be the worst decision I ever make."

However the star is planning to use the break from TV to return to theater, go to college, and even have kids. She tells the New York Post's gossip column Page Six, "Theater is one of my loves, so I'm open for that after 11 and a half years of working in prime time TV. I've never been to college so I think about that."

"But I kept putting it off, and I am also thinking about having a child, and that's really important. Also I want to do a lot of traveling and surfing - two of my hobbies."

She regrets it now after seeing how many people are glad to see her gone.

she was one of my fave characters on the show. it kind of is sad to see her gone.