Welcome to the forums!
It depends on what you are good at whether it's drawing, coding or just a bit of both.
My preference is try to start a mini project and learn how to the interface.
Always remember that when you are designing something in RPG Maker, you need to think what it takes to create it.
For example, if you want to make a simple quest like talk to someone and get an item and bring it back, there's a lot more things that can be done. You just have to experiment with it.
Sometimes you discover new ways to do things and then you want to start over and make a better one. Keep doing it. And don't forget to ask if you get stuck. I will be one of many friendly people here who will help you with anything to the best of my ability.
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