You were lucid. I have 20+ years experiance. You will gain more control as you practice. In no way do you suddenly gain control of the world just because you become lucid. You will have to develop this part of your brain and gain confidence. 1)digital watch-only a few digits, a book would move around more and change as you read. 2)you can not move your hands through one another. Maybe some can. I can feel one hand with the other and they are as real as they are in waking. Give it time and be thrilled that you are making progress! I could not change anything at all, just control myself for maybe 12 dreams. Then the control came very slow. Now I can fly and change scenes and all the pther fun stuff. Good job, you will get more control soon.
Reality checks also take practice. Soon you will be able to see that it is a dream with little effort.