Why is no one hiring me?

You're probably firing out dozens of half thought through applications. People recognise these and aren't interested.

Look for things you're really interested in and submit a well thought out and thorough application.

Maybe they don't want to hire minors?

A complete lack or work experience coupled with a "degree" which says "I couldn't even show up to school on a regular basis."

Do you even know to what jobs you were applying, or did you just shotgun to the world like "here I am?"

If someone gets the job, it wasn't by accident.

Try the way all of us did - in person.

Unless you have a specialist skill forget Indeed, Reed etc. Look on individual company recruitment websites for vacancies. Have you tried the old fashioned way of going into town with a pile of CVs and handing them out in person to independent shops, cafès, restaurants and other businesses?

Ask friends, friends of friends, ask anyone you know if they know of any vacancies and make it publicly known that you are looking for work.

Indeed is most commonly used by professionals with education, credentials & experience. You are still a minor & need a state work permit under child labor laws. What kind of jobs are you applying for, and what are your qualifications for those jobs? Are you still in high school, or have you just graduated? At your age, you need to go in-person to local shops if you want retail sales clerk jobs, or restaurants/fast food, or other starter jobs for the uneducated, untrained, inexperienced. Unless you have some exceptional qualifications you fail to mention here.