How do I hit the ball more

I am unranked and pretty bad at the game and one of the things that I need to work on his hitting the ball and not missing. I usually try to flip into the ball but, I end up flip to the right or left instead of into the ball. What ways are there for me to have better accuracy for hitting the ball. Do I just go in FP and practice for hours. Or are there better ways to train accuracy.