I've been playing role-playing games (mostly D&D) for a very long time and, finally, I've decided to run my own campaign for the very first time in Stars Without Number. Our group will be a small one, 3 PCs + myself as GM.
One of the PCs is an amateur player (limited experience). The other two are total newbies to role-playing although they know what it is. And as I mentioned, this will be my first time running a campaign.
I've spent the last few weeks building the world but I'm afraid that because I'm inexperienced as a GM, and because the group will be inexperienced as well, that I will not be able to provide a fun adventure, or that I will make serious/common mistakes.
My question is: How can I avoid common pitfalls consindering that both I and the group are newbies? Is there a list of things and/or guidelines I should follow before beginning my first campaign? What is the best way to make sure that we all are on the same page and that I will be able to provide them with a fun experience?
Disclaimer 1: There are three similar questions: [a], [b], and [c]. However, all three of them are not applicable to what I'm asking. [a] is about the technical details of Generic Point Build Systems, [b] is about Dread Games, and [c] is about Kingdom Building. My question focuses on the fact that both I as a GM, and the group, are newbies.
Disclaimer 2: Some mods may tag this question as Too Broad. I argue that it is not, as I am asking specific things, such as common steps on how to achieve X, or known guidelines (that I'm unaware of). If you are about to tag this question as too broad, please reconsider or give me the chance to clarify.