To be ambitious and to want to be successful is not enough.
To know what you want, why you want it and what to do in order to get it is not enough either.
Wanting and knowing is not enough. That's just desire. You must do by taking action.
You must be willing to dedicate every breath in your body to work day and night on the dream.
You may fantasize about walking on water all your life but never get to actually do it.
You have to take a bold step out of the boat and step into the water. 