It would be only human to be a little intimidated by a 4th step.
I thought of JFK's words "the only thing we have to fear is fear itself " when mustering the courage to do mine.
That man and his wise words were the truest thing I have experienced in relation to a 4th step.
It reminds me of teaching my kids to ride a bike with no training wheels.
They are at first, packing their little pants, but then they eventually zoom off down the road without me holding on to the saddle. They don't even know I've let go and then they turn around and look back to see me standing 50 yards away.
And then the smiles come. Big ones