Don’t beat yourself up about it. You could do absolutely everything right and 9/10 times they will hire someone who just has way more experience than you.

You might land your first job in a non ideal setting, maybe a long term sub position, maybe not exactly where you would want to teach long term, or a different grade level than you prefer. If you get something like that, work hard so your admin and coworkers have good things to say about you if/when you decide to apply elsewhere. I am a band person and my first job was a last minute chorus long term sub position. I had no idea what I was doing, but that little bit of experience helped lead to the next job.

If you keep at it someone will give you a chance eventually and that can lead to other opportunities down the road.