Answer:
I believe that there is no right or wrong answer in this particular question; only a matter of understanding the basics of state formation, establishment of roles and tasks to perform, and organization in general.
When forming a state, the first thing that is necessary to establish is the rules and norms that will provide the framework for the entire state. Thus, first, I would gather with other experts, and leaders, on the matter and establish a counsil with them to decide how to structure the government that will be entrusted to lead this new state and to establish the laws, norms and regulations that will be agreed upon for the functioning of it. After this has been done, a system of government needs to be elected (most likely a democratic one, not necessarily federalist in style), and the plans need to be shared with the public of the state for joint work between the leaders and the led.
After this is done, then people need to be assigned different tasks to perform within the state. The leaders need to be selected from te best, and the most prepared, but need also be accepted and elected by the people who will be governed. Next, a group also needs to be selected to form the military (civil and military) to specialize in the protection of the state itself from both external and internal dangers. After this, a system of production needs to be instated so that the economy starts to build up, so the newly established government needs to start negotiating with other nations, offering the services and goods that the new state is capable of producing, while technological advances and development permit the state to become stronger and more competitive in production and in trading. There also needs to be an establishment of rules and regulations for inner commerce and trade, the establishment of a currency. Once this is done, more tasks and functions need to be assigned and will naturally grow, as the needs of the people become aparent. Once security, and basic needs are met, others will start developing.
The most challenging task would be to really get the people in the new state to collaborate and think in terms of the group, and not merely the individual welfare. Managing people to agree to the rules, regulations and processes that are being agreed upon, and also work under them.
I would not expect any of the tasks to be easy, because there is nothing more complicated than organizing large groups of people, especially when it comes to forming a state, growing teamwork and group identity. Thus, I would not say any of the tasks would be easy.
