Parts for iPhone 11 (Downey, CA)

Happy Friday everyone, I am looking for parts for an iPhone 11. My son's screen is broken and hasn't been able to use his phone for almost 3 weeks now. Everytime I think I saved up, an unexpected expense was thrown my way. And fixing his phone yet again had to go on hold. He's doing well in high school and helps me more than he knows. I feel like a horrible mother how I can't afford to fix his phone properly. With him having to walk or take the city buss from school everyday, I am nervous more now than ever. This is the only communication that I have with him and my other two younger children when they spend nights at their dads. I panic everytime they leave.