If you are thinking about doing something different, don’t let the fear of failure keep you where you are.
In order to grow we must be uncomfortable feeling comfortable, discontent being content, if you have been successful in one discipline, role or project its human nature to look to replicate those victories. However ask yourself the question have you learned anything new? have you grown?
I have made several moves and have never felt more alive, adding more notes and learning much more then before, getting more out of meetings, finishing every week a sense of achievement and personal growth.
The move may not work and that is ok. Failure is a part of trying new things. I highly recommend you try something new if you can.