My mom got sexually assaulted

I don’t know where to start. This morning, at 6:50 AM, the garbage collector came to our door, and when my mom opened it, he flashed her. My mom, thank God, is a strong woman, she screamed at him, “Ruk, tujhe batati hu!” and grabbed a chappal, but he ran away. We immediately went to the police station, hoping for support. But to my heartbreak, not a single neighbor came to help. Most of them turned their backs on us, too busy with their own lives to care. I felt so abandoned, like no one cared about what happened to my mom, to my family. It was just us, standing there, fighting this alone. In the end, we didn’t file an FIR because we don't have the energy to do the court kacheri work for next 10yrs and also it's an bailable offense, so what's the point ? The man is currently missing. But the hardest part is not just the terror of what happened. It’s that, after my dad left us years ago, it’s just me, my mom, and my sister. We’ve fought to keep going on our own, but today, I felt like I had failed as a daughter. I couldn’t protect my mom. I couldn’t shield her from that monster, and I can’t promise her safety anymore. I feel like I’ve let her down in the worst way. She deserves so much better than this. I feel like I’m failing her every day, and today was the final blow. I keep thinking about how powerless I am. This man could come back anytime, and I can’t even give my mom the peace of mind she deserves. The paranoia is eating me up, wondering when he’ll show up again. And what hurts the most is the silence from everyone else. We live in a society that stands by and does nothing. Our neighbors couldn’t care less. No one stood up, no one offered help. We’re invisible, and it’s crushing. I can’t help but feel so alone in all of this, like no one will ever care enough to protect us. I’m supposed to be the one who keeps us safe, who makes sure nothing happens to my mom, but today, I failed her. And I can’t shake the guilt. I hate myself for it. I feel like I’m not enough, that I’m not strong enough to make sure my family is safe I just don’t know what to do anymore. How can I keep my family safe when I feel so alone in this fight? How do we live without fear when no one seems to care about what happened to us?