Yes it's true. Our whole life is in our hands. And only we have the right to do so as convenient and as right for us. Therefore, any decision should be taken as prompted by intuition.
I agree. You have to be contented of what you have even but still striving to do more improvement is needed. You have to make your own decision and study before you take an action because own there is a risk on whatever you choose to do. Your destiny is everything happens on your life because it is the result of every decision you do. You have to build your own destiny on your own bare hands.