How far have you come by yourself?
For the stats I would either use variables or use an array to store them in..
on job completed add 1 to JobsCompleted
on money earned add money to MoneyMade
then you can set a textobject to : "Money made: $"&MoneyMade
or if you use an array to: "Money made: "Money made: $"&Array.at(x,y) (where x,y is the position in the array you have put the amount of money made)