Newbie question about playing the bubble with big stack

[Jeoke]

I know what to push when I am short stacked but when I get big stacked I always find myself thinking like a wussy. I get scared to keep pushing hands and I get that feeling of just making it into the money! which I know is completely wrong!

Since most the posts here are about when your small stacked can someone give me some very basic pushing requirements(If they are different than small stacked)and strategy for being big stacked. Just to set me in the right direction.