Don't start by thinking "i need a variable to hold this value". Start by writing out the kind of things that need to happen. The general rule of thumb is that nouns become classes and verbs become methods.
So, I may write:
the player rolls the dice.
The player will them move their token that many spaces around the board
So, From the first sentence, I may need a player class, a die/dice class, and a method to roll the dice. the roll method probably belongs on the dice class, and the players probably need to HAVE some dice.
The second sentence implies that I also need a move method, a space class, and a board class - the board class probably HAS spaces and HAS tokens. I would think the board class would have a move method that takes a token/player and an int value to that tells it who moves how far.
You should probably expect to spend a few hours writing this stuff out, and THINKING about things before you write a single line of code.