Although not a very pretty shot if you level your shoulders to the slope, aim left and walk through the shot it can be very effective
Using a piece of string with tees attached to both ends is the best set up and alignment tool you can have, put it in the ground to represent your target line then use it to square your clubface, align your body to the target line and maintain a constant ball position
Try to make the simplest pitch shot possible, instead of trying to pull off high spin lob shots when they are not necessary