1,000,000 Little Pieces

One million little things or pieces will always find a way to bunch up and make one big chunk.  I've always thought little things never mattered until I learned "not to sweat the small stuff" and I didn't but now I don't want to do anything but that. All these small things are beginning to turn into one huge thing, add up, form their own little army. In a way, I'm glad they're all combining together... but at the same time, I'm confused. Is it one on one or one against a million?