I find that everything I do is demanding, like Jack Bristow is a complicated man and I do a lot of explaining in the show, it takes a lot of energy and concentration.
So many people prefer to live in drama because it's comfortable. It's like someone staying in a bad marriage or relationship - it's actually easier to stay because they know what to expect every day, versus leaving and not knowing what to expect.
Insecurity is just something that's there all the time. I've never been crippled by it.