Displaying object in random x-position within the Screen & Changing object speed

I have been creating this simple game for fun, and I have ran into to some troubles.

1st Problem: Displaying an object within the screen width, I have checked other answers in stack and applied seems to not work.

txtWord is set as wrap_content, though it would be easier if it was set to a particular size, but words have different lenghts so I kept it wrapped.

This is my Mainactivity:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_arcade);

 frameWidth = frame.getWidth();
    boxSizeX = txtWord.getWidth();
    randomWord = randomGenerator.nextInt(916);
    randomWordToDisplay = easyWords[randomWord];
    txtWord.setText(randomWordToDisplay);
    //PROVIDE RANDOM X LOCATION
    newXposition = r.nextInt(frameWidth);
    if (newXposition > frameWidth - boxSizeX)
    {
        newXposition = frameWidth - boxSizeX;
    }
    txtWord.setX(newXposition);
    }

2nd Problem: Setting new speed on an object falling down. As the score rises for the user, I woudl want to change the speed and increase it little by little. But what happens is that the current speed just adds with the speed I want to increase so it because more faster.

This is my Activity:

   public void startTimer() {
    timer = new Timer();
    initializeTimerTask();
    timer.schedule(timerTask, 100, 20);
}
public void stoptimertask() {
    if (timer != null) {
        timer.cancel();
        timer = null;
    }
}
public void initializeTimerTask() {
    timerTask = new TimerTask() {
        public void run() {
            handler.post(new Runnable() {
                public void run() {
                    goDown();
                }
            });
        }
    };
}
public void goDown() {
    frame = (FrameLayout) findViewById(R.id.frame);
    frameHeight = frame.getHeight();
    boxY = (int) txtWord.getY();
    boxSizeY = txtWord.getHeight();
    if(scoreCount >= 0)
    {
        boxY += 1;
    }
    if(scoreCount >= 5)
    {
        boxY += 2;
    }
    if(scoreCount >= 10)
    {
         boxY += 3;
    }
    txtWord.setY(boxY);
    if (boxY > frameHeight - boxSizeY) {
        boxY = frameHeight - boxSizeY;
        stoptimertask();
        displayGameOver();
    }
}

Thanks in advance for any insight or help! :D