Struggling with My Obsession...

I’ve always been passionate about my research, but lately I find myself spending more time daydreaming about it than actually working on it. Every night before bed, instead of reading papers or analyzing data, I end up staring at my notes and thinking about all the possibilities... Why can’t I focus? It’s like this intense curiosity is eating away at me rather than inspiring me to take action... Is this normal for someone in grad school... Should I try mindfulness techniques or something else to channel this energy into actual progress? Any advice would be appreciated...