I’m at my limit, ya Allah, I don’t know what to do anymore

My big brother basically raised me after we lost our parents when I was 12. He was my whole support, the one who always reminded me to say Alhamdulillah no matter what. After I got my bac, he encouraged me to leave for my studies, saying Allah had a better plan for me and he’d manage things at home. I trusted him and went. Then a few weeks ago, he just stopped answering. I contacted a neighbor back in Fkih Ben Saleh and found out he got into a fight. Some man was bothering a woman on the street and my brother stepped in to protect her. He beat the guy badly and now the guy pressed charges. My brother is locked up. He’s a good Muslim, he was just defending a sister, and now he’s in jail. I kept waiting for a call, making dua after every prayer, just begging Allah for a way out. But everything just went dark for me. I’m so drained, I feel like giving up, but I can’t do that to my brother. I haven’t eaten properly in days, my appetite’s completely gone. I just force down some bread with atay and a few olives I had left because that’s all I have. I pray Fajr and just sit crying on my prayer mat because I don’t even know how to help him. I never thought I’d be pouring my heart out to strangers like this, but I have nobody else. I keep saying ‘Hasbiyallahu wa ni’mal wakeel’ but my chest feels so tight and I don’t know how I’m gonna get through the next few days, let alone get my brother out.