Flick soccer game - ball cannot go left / right

I have played around with the variables and found that it persistently only goes straight. By increasing the force, it succeeds flying up but still goes straight. The puzzling part is when the instructor uses the same code, it can be kicked left and right. When I click the mouse and move it up left or right, it won't go either way. It does only straight. I believe I have to add other codes to achieve this. My link is here - https://drive.google.com/file/d/1-Gx1mcoJwsBCxMMdYV7wEBMNEf4X4L9z/view?usp=sharing.