engine won't start Nissan

https://enginewontstartnissanreport.novacrestiq.com/posts/what-to-do-when-your-engine-won-t-start-nissan-vehicle

So this morning I go to start my Nissan and nothing—just a clicking sound from under the hood. Battery's fine, lights come on bright, but the engine won't start Nissan makes me think it might be the starter or a bad connection. Tried jumping it, still dead. Now I'm stuck figuring out if it's the ignition switch or a blown fuse.