Navigating Through Moments of Doubt: Strengthening Your Iman

As-salamu alaykum, I've been trying my best to stay on the straight path-praying regularly, fasting, and living as a Muslim should. Lately, though, I can't help but feel my Iman is starting to wobble a bit. I keep asking Allah for forgiveness and making dua, but then these strange thoughts creep in: What if none of this is real? What if life after death isn't what we believe? What if we're just lying in the grave with nothing happening afterwards? Also, seeing everything happening in Gaza has really shaken me-sometimes I wonder why Allah hasn't intervened yet. It's left me feeling confused and struggling. How do I get past this? One moment I'm full of faith, begging Allah for help, and the next, my Iman feels completely broken. Any advice or duas would mean so much. Jazakallah khayran.