You are getting good advice!

Get a degree or vocational training and secure a career you enjoy working in that is in high demand so you have job security. Enjoy your music as a side gig. Begin networking with others and see where that takes you. All the while living a comfortable life.

Cinderella stories where a fantastic singer-songwriter is "discovered" and then featured/produced/managed to success are pretty much just fairy tales. Yeah, it could possibly happen but you have about as much chance of winning the lottery.