First of all, be confident. Successful people on the surface is humble, but the bones are full of confidence, from your words I do not feel confident, maybe you will say you are the first time to pick such a heavy burden, afraid of screwing up, but who is out of a lifetime will lead the team, will be able to operate and manage, will be successful it is in the continuous PDCA cycle to enhance their own, to reach a peak again and again. Moreover, your boss to give you this opportunity, is to value you have this ability, or potential, you have to have the courage to give up, the big deal is to start over, you only work three years anyway, afraid of what, young is your biggest capital.
Secondly, be attentive. The old saying is true. After the confidence to think carefully about what to do, to do it with all your heart, to have the determination to do things to the extreme, you have to believe that NOTHING IS IMPOSSIBLE.
I think you can read more biographies of great people or business giants.
2, ability:
First of all, you have to have excellent business skills. Since you are engaged in the work of administration and personnel, which requires you to be an authority in the company, or you are very good at human resource management, planning, recruitment, training, assessment, pay and other aspects of the key points to grasp very well; or you have been a project manager, to take charge of the management of several large projects. I think your boss will not let a newbie to do his staff, so you have to be confident that you have the ability to do this, if they think they are still lacking, do your homework right away, otherwise you can not make your subordinates convinced.
Secondly, the way of doing things, that is, the ability to solve my problems. Everyone can not be everything, become a variety of experts, but you can do things the right way, become a quasi-expert in the field you do not specialize in. The correct way of doing things can not be taught, but only to learn and find out, here I want to remind a point is, do not think that they are doing is right, to carefully observe how other people do, keep a learning heart. The McKinsey Method and other books are good choices.
Finally, and most importantly for you - leadership. Leadership this thing, is really an art, not only human leadership, animals also have leadership, thousands of years people camp, is the art of leadership. But to put it bluntly, the art of leadership is the art of Royalty, in this regard, we should learn more from government officials and the military, you can read more about the stream of Zeng Guofan's book, his success lies in the use of people. Here I remind a point, as the fourth floor brother said, to build a good team, you have to come up with a sincere, this point I have a very deep experience.
3, ideas:
Here on the specifics of your post to talk about, because I have done similar things. If it were me, I would do this on three levels. Of course, each person, each company's situation and characteristics are different, just for reference.
First, your department is largely a service organization, and a lot of the work is very specific and very basic, such as recruitment, logistics, etc. These basic tasks account for 70-80% of the work of the entire department. I know a lot of similar departments all day in the fire-fighting, this said the manpower is not enough, quickly to recruit a few; that complained about this month's office supplies have not arrived; there are two business departments "fight", looking for you to do the referee, and so on and so forth. You will be confused all day long. What to do? Here you must be clear, you want to dominant or passive. Dominant people and teams will come up with a ton of ways to deal with things and prevent problems, reactive ones will just put out fires and complain. I won't go into the specifics of how to do this. Only when the service is good, your department has the basic value of existence.
Secondly, to do some "big project", of course, do not do for the momentum, is to be from the company's point of view, for the company's business management and management of the enhancement of some of the improvements made. Let's say, assuming that your company's personnel system is relatively backward, stay in the manual statistics, paper files on the level, you can suggest to the boss on the personnel system (of course, and your company's actual situation compared) and so on. This is not only good for the company, but also for your department and you personally. Project management skills are essential in order to avoid screwing up projects.
Finally, think about long-term stuff, how to become a system. This one is the hardest, and often falls into the system-building rut. I think people are the main, around the people to carry out, the quality of people, business capacity, sense of belonging, performance, etc., of course, the system process, structure, business model, cost, quality, etc. is also to think about.
4, relationship:
First of all, to obtain the support of the boss, let go of you, which is very important. You don't have to sneak around, as long as you can think differently, for the boss's sake.
Secondly, you need to have a good relationship with other mid-level leaders, and be able to get their support, most of your work can be carried out very smoothly. Here to pay attention to, you have to understand the business, to talk to them, to be able to really help them.
Finally, you need to really understand the needs of your employees and communicate the boss's intentions. What you said about the management of employees and communication skills with employees, no it, but sincere also, you think about them, communication is no obstacle, management is smooth.
Above I said some experience, in fact, there is nothing new, repeatedly emphasized the sincerity and self-confidence. The last thing I want to say is that management is often about balancing forces, reconciling contradictions, and not being selfish, so that you can do a good job!