A Test of Faith

As-salamu alaykum everyone, I'm going through a really tough time and I'm hoping to get some advice or guidance from my fellow Muslims. Lately, I've been having some doubts and questions about my faith, and it's been affecting me deeply. My cousin, who was like a brother to me, passed away due to a severe cardiovascular disease. It's been really hard for me to come to terms with it, especially since I had been making du'a for his recovery and was hoping for a miracle from Allah. When I heard that he was feeling better, I felt a sense of hope, but then we received the devastating news of his passing. It's made me question my faith and I'm not sure what to believe anymore. I'm reaching out to my Muslim brothers and sisters, hoping that someone can offer me some guidance or advice on how to deal with these feelings and doubts. Jazakum Allahu khayran for taking the time to read this and I look forward to your responses.