I'm not an author. I didn't write the book I wrote. That sounds odd, but stay with me.
As I said, I'm not an author. The people who work very hard to understand language, syntax, and grammar and how to use it all to convey ideas and weave stories that people actually enjoy reading, those are authors. Authors work very hard to write the books that they write. I'm just now figuring that out not because I'm just now fully maturing into the art of writing but because I'm just not an author. I've been reading what authors do to write the stories that they write, and it is an extensive, hard commitment. To write authors plan out their characters, settings, plots, and just about everything. Some even create Pinterest pages to help them ideate about what they will write. I give kudos to authors.
However, I don't do any of that. I just get a notebook, get some thing to write with, and ask God to help me listen. Then He gives me the story, and I just write it down. It's that simple. It's that simple because I'm not an author. I'm a listener.
God doesn't choose people who are able to do the jobs He gives. In fact God uses people who are completely unable to do the jobs He gives them. God does this so that while serving Him people won't try to just do it how they know to do it, how they've learned to do it, or how they're "supposed" to do it. God chooses people who have no idea how to do something and so are willing to just go to Him and say, "God, help."
That doesn't mean you have to be bad at everything for God to use you. As I said, I'm not an author, but I am a listener. After doing this odd not being a writer but writing thing for so long, I can see that God chose me for this not because I know how to be an author but because I just really like to spend time with Him and don't mind to just listen while He talks. In most people's eyes, I'm probably the wrong man for the job of authoring a book. However, in God's eyes I am exactly the right person to write down the story that He wants told.
You may think that you don't have talents, abilities, or anything at all to offer God. That's okay. God doesn't want you to be the right man for the job. God just wants you with Him, willing to go to Him and say, "God, help" because truly God's the one who's going to take care of the job anyway. You don't have to be the "right" man for the job, you just have to be willing to be used by God.