Maybe the best trick I've learned for writing, or creating anything, is that you can make something interesting from anything. If you're waiting for the perfect idea so that you can write your novel, it isn't you or the idea that's the problem, it's probably your approach. You can take literally anything around you and start spinning tales around it. They won't be good, you say? So make them good. Or start over. What's the loss? Stories start in the soul and pass through the heart, head, and hands.

If you don't believe this, how hard have you tried? It's like what Miles Davis said about music and improvisation: "There are no mistakes." Sure the concept exists, but he's also right. You can make something interesting from any sound. And if you approach music in that spirit, you almost can't help yourself. You will make music.

Take whatever comes to mind that's around you or in memory or whatever. Feel its significances for a moment. Now stick something else to it. Then do that again. You can do a lot of sculpting in your head. What's less interesting, you'll usually forget. What's more interesting, you'll probably remember. So don't freak out unnecessarily. But feel how you're gonna feel.

It's in exploring the spaces of potentials, and feeling what we feel in them as we ramble, and noting a few landmarks, and sticking things together, that we make what's worth making.

If you don't have the confidence to approach this as I suggest, then I suggest you try it anyway and keep at it for a bit. If it really isn't your thing, then you can do something else, take on another pursuit. But that's your decision. Don't let anyone tell you when to quit (unless they're directly involved). Sometimes quitting is best taken off the table. Sometimes you don't want to let you yourself tell you when to quit. It's an undefinable thing.