Invisible things of a star

It's actually my homework from the English course so if you see any details please tell me.

This book is about a girl who finds love even though her life is the hell.

Her father died and her mother scraped from home, so without more family, Maia gets love in a guy who she used to hate at the high school.

-Stars transform hydrogen into helium to shine. When that hydrogen runs out and the core is only helium, the star becomes cooler and brighter. There's an explosion. It dies, and its remains give rise to a neutron star. That's known as a "supernova." It's one possibility. The other is that a black hole appears. Dad used to say that our bad times are represented by stars. We can choose between learning something from them, becoming supernovas and growing stronger, or simply letting them drag us down. And I also think that I'm becoming more and more like a black hole. I swallow my problems because I think I can solve them on my own.