Curving a ball has many purposes
In order to curve a ball you need to have a good pumped ball.
It is important to wear cleats because it is easier to curve, however you can wear casual shoes.
Try to kick the corner of the ball and to use the upper part of your shoe. Try to make the ball pop because if you dont then the ball won't curve and will just spin on the ground
Go to my youtube video if you want a more explained tutorial.
Try to kick the ball a little farther down if you have trouble lifting the ball in the air.
It is important to kick the side of the ball because if you don't it will be just like a regular shot.
Try to aim the ball better and not to kick as hard if you have trouble missing high and wide. You also might be too close to the goal.