Painful fingertips and emptiness

I barely slept at all last night. After I got home last night and showered and ready for bed, I picked up my guitar and headphones and practiced until the pain in my fingertips was unbearable even after resting. I'm no where near as good as any of the guitarists that were at the beach last night. Yet. I need to keep practicing. Even after deciding to call it a night, my mind kept drifting back to the beach and I had to fight hard to keep from picking up my guitar again. Eventually I fell asleep, but even then, I dreamt that I was at the beach, sitting in the sand, listening. I'd wake up with an emptiness knowing that it was only a dream and I was still in my bed.