There is no going back. You have reached this point in your life by allowing the flow of existence to carry you to this time and place; this situation; this very moment.
You know you cannot return to the past, to the smaller self you once were. This is like facing upstream and trying to go against the pull of the current on a flooded river.
You have grown, expanded, and become more than you were. You are larger in spirit, more expanded in heart, wiser. The fears, doubts, and worries of the past are washed away and dissolve like fog before the morning sun.
You are here now, in this body in this place and time with the people who surround you. The stream of life has brought you here.
At any point you may halt your progress, pull out of the stream, get lost in a backwater, beached on a sandbar, foundered on rocks. Will you cling to the shore and stay stuck, or will you allow the current once more to carry you downstream? The choice is yours.