You have to make 2 characters named GOOD and BAD first. Then you can copy their numbers.
You should write @BAD +1 for bad choices and @GOOD +1 for good choices.
Next you can create a point checking system at the end of each chapter like authors have FAQ section. You can write:
label checkpoints
NARR
Select the points you want to check. (or type whatever you want in the dialogue)
choice “Good Points” {
NARR
You have [characternumber of GOOD here] points.
goto checkpoints
} “Bad Points” {
NARR
You have [characternumber of BAD here] points.
goto checkpoints
} “Done” {
continue
}