The clock in your dream means action, planning, sports, work and so on, which makes you realize the importance of time. Therefore, when work and homework are not smooth, I often dream about clocks and watches.
In fact, your dream is a merciless warning to yourself. You seem to be very active now. Watches mean routine work, which means that you should faithfully observe the seriousness of doing those things. You are withdrawing your lazy attitude and working hard.