Build the game from the spec sheet. It should loop until the player wins and tell them higher or lower each turn.
Pick a random number between 1 and 100, then read a guess and respond with higher, lower, or correct. Keep going until they get it. That is the whole program, and it is more than enough for a first project.
Name your variables so I can read the loop without asking you what it does. Ten marks of the thirty are for a program somebody else can follow.