Vex V5 C++ GPS sensor, driving to specific coordinates

Question

Im trying to make a code using the GPS sensor that can drive to a specific coordinate using if statements. I've only done the X portion, and it works, but I'm looking for how I can stop checking the X statement, and move on to the Y:

void driveTo (int xPos, int yPos) {
  printPos();
  if(xPos > 0){
   Drivetrain.turnToHeading(90, degrees);
   while (GPS14.xPosition(mm) < xPos) {
     Drivetrain.drive(forward);
   }
    Drivetrain.stop();
 }
    if(xPos < 0){
 Drivetrain.turnToHeading(-90, degrees);
 while (GPS14.xPosition(mm) > xPos) {
    Drivetrain.drive(forward);
   }
    Drivetrain.stop();
   }
 }

 int main() {
   driveTo (0, 0);
 }`