Hi Alifiyah, and welcome to Moodle.... 
What Mary and Alan have said are important so please do them.
The next step is to ask what it is you actually want from Moodle?
The trouble with this is that you do not yet know what Moodle is capable of. My suggestion is that set up a Moodle and play with it. If you have a server somewhere, or access to a computer that has server software on it, install Moodle. Don't forget both PHP and MySQL first. If you do not know how to do this, there are plenty of tutorials around to help you. These are not big issues and will, ultimately, be taken care of your network manager and tech staff. If you talk to one of them, they may help, may even do it for you on their server - if you ask nicely. I have had a Moodle running on my laptop, but that was an interesting experiment that did not work as I wanted it, I really did not understand the network requirements of servers and Moodle so it didn't work as I wanted, but I actually used that as my test and demonstration Moodle when I was in the rural areas of my home state.
Once you have an operational Moodle you can just add courses, add categories add activities and resources to your hearts content. Use them to learn how to do things. Most pages have a link to a Moodle Doc of some description, so if you get stuck, you have a doc to help you. Initially, concentrate on resources and activities. Start with what you users are going to be using first to see what is possible. From there you can look at the internal management of your Moodle, with things like Users, Roles, appearance, themes, then move on to more demanding tasks, Capabilities, groups and groupings, cron, plugins and so on are really for those people who are running the site, the Administrators.
Once you have an idea of what Moodle can do, then you can start to ask the right questions in how you can apply Moodle to suit your needs.
The learning curve is not that steep, really, just practice and understanding the docs are often helpful, but sometimes not. About a week should be enough to get the basics of Moodle, then it is just a matter of refining what you need to know.
It's a whole new adventure, and when things get tough, it is usually that you are asking the questions from a more traditional "computer-software" perspective rather than "server-application" perspective. Well, that is what I found, and it really did amaze me when I realized that using Moodle was not simple, but it was easy.
Good luck.
