The necessity to leave our comfort zone in order to achieve blackberries is nowadays considered a must do.
In management discussions online and off-line everybody says you must leave your comfort zone, because your comfort zone is what is keeping you from changing your old habits and achieve more in life and work.
I am not saying that's not true: I am always searching for new things to experiment with, and looking for innovations. I also believe taking risks is a fundamental part of management.
However, just before you decide to leave your comfort zone and head into the unknown, take a few minutes to analyze what you are doing and plan for it. It'd be a good idea to also have a roll back plan, just in case the new project doesn't work out as expected.
If you still think that a gut decision is what is needed here and now, just take a look at the video below.
[youtube https://www.youtube.com/watch?v=ygE01sOhzz0]
Another approach is to just seize the opportunities that present themselves to you. You can watch the movie Yes Man with Jim Carrey. See the trailer below.
[youtube https://www.youtube.com/watch?v=N7CTxhqExao]
English 
Italian