Fear of losing family - need some advice

Assalamu-Alaykum, hope you’re all well. I posted this before and only had one reply, so I’m sharing again. Jazakallah khair. I’ve been struggling with anxiety about losing family members and I’m not sure how to cope. Over the past four years I lost my dad and two grandparents, and since then I’ve had this constant fear that I’ll lose more loved ones - especially my younger siblings. Lately the anxiety has become worse because I keep spotting what feel like patterns. For example, the year before my dad died, my dad and siblings’ favourite football team won the league and we made a very happy memory. This year our club won the league again, and my sibling’s favourite driver also won the F1 championship. That’s making me worry that Allah is giving us joyful moments before taking someone from us. January–February is always hard for me because that’s when my dad and grandparents passed away, and we’ve also booked a holiday in January - which makes me even more anxious, thinking it’s another happy memory before a loss. I know these thoughts are probably wrong and might be close to superstition, but I can’t help noticing the similarities and it drives my anxiety. I don’t know if this kind of thinking is correct in Islam, and it’s really upsetting me. If anyone has any advice, dua, or comforting words from an Islamic perspective - ways to deal with these fears, or reminders that might help me trust in Allah’s decree more - I’d be very grateful. Jazakallah khair.