While you can direct your career, controlling it proves to be another story. I know that career planning is a lost art akin to divination and alchemy. I have always had a direction in my career but life has a way of sending you down curving roads where you can't see what's around the bend. If you would have asked me years ago whether I would ever work for The Walt Disney Company, a mutual fund company and a web site company providing movie information I would have said no. Life is odd.
Life is capricious.
Life is life. My first job was working for an early online service dedicated to the music industry. While I liked this job a lot the company didn't survive. After 2 days I found that company to be so screwed up that I left. I ended up working as a bench technician repairing and configuring PC's.