Need to know exercises for a 12 year old boy starting with warm ups on a weekly basis?

10 normal push up then 5 second break then 11 push up , 4 second break 12 push up 5 second break , 13 push up , 6 second break , 14 push up, 7 second break , 15 push up , 8 second break ... then every week you add push up according to your body. enjoy