Draw from real life. Most of my stories are character-driven. I don't start thinking of a story before I have a character I want to exploit, unless the story is based on a topic very close to an easily created character or a person I know.
Most of my characters are based on real life encounters, often on crushes because I pay extra attention to them and imprint on them. And perhaps, because I keep falling for surreal weirdos worth a million stories. The stories are then built around the characters and their flaws. I can't even explain or describe my work process - it just happens, and people say it works.
I suck at thinking a story through in terms of plots and pace and active/passive. But characters? I should take money for coming up with characters.
My advice really is to look in your real life for people who are interesting or who you think would make for great stories. Change their names, change their location, whatever, and then write what you think their story could be or what could be a nice fictional story to fit them. Here's a few people I could write and write into stories as ready-made characters:
1. The tiny, adorable-looking loud-mouthed, bossy, pushy, cheeky army commander GIRL who melts in front of puppies, but will blow your ass into next week if you offend her friends. All she wants for Christmas? European bread rolls.
***Cut, so as not to take up too much space***
See, I'm only 32 and this is only a small number of the fascinating people I've met. If you just look around, all you have to do is change some personal info to make the person credibly fictional, and put them in a story.
Ravioli, I just wanted to say that your characters are amazing! I love this post! Yes, I know that you did not create these people, but you were observant enough to see their potential and write them down, which is a vital skill for a writer. And you wrote them beautifully, too!
From reading your posts, I can tell that you have a few concerns or reservations about your ability as a writer, which is completely natural and probably inevitable. And probably even healthy. But I just wanted to say that your prose is lovely and you appear to have a very intuitive writer's eye for the world around you. I have absolutely no doubt at all that you have the talent and the material to produce wonderful novels, so please keep writing and push on through all your doubts!