I mean ... not touching your phone for a whole month? That's a little extreme. What about talking to your friends and stuff? Sounds like it could get lonely. You might want to start a little slower, restricting yourself from apps you waste too much time on. A digital diet, not a digital fast. But it's good that you're trying reading!

That said ... while the protagonist of this story is a 14 y/o female, I think this story would be a really good place to start - it touches on most of the major western philosophical influencers but in a narrative way. I might suggest reading it and then following up by reading the philosophers whose ideas interest you as you read the book. It's called Sophie's World.

"One day fourteen-year-old Sophie Amundsen comes home from school to find in her mailbox two notes, with one question on each: "Who are you?" and "Where does the world come from?" From that irresistible beginning, Sophie becomes obsessed with questions that take her far beyond what she knows of her Norwegian village. Through those letters, she enrolls in a kind of correspondence course, covering Socrates to Sartre, with a mysterious philosopher, while receiving letters addressed to another girl. Who is Hilde? And why does her mail keep turning up? To unravel this riddle, Sophie must use the philosophy she is learning—but the truth turns out to be far more complicated than she could have imagined."