You don't have pictures so tell us what you have. If I'm reading right you can get the trailer in the driveway but when you get to the hitch it drags.
When you first start the trailer into the driveway how much room do you have before it drags? The answer to that, say 3 inches, is how much you can lift the front. If you have 3 inches buy another plain hitch with a 2 inch rise. Park on the street, chock the tires, unhitch, put the raised hitch in and hook back up. Now you may be able to get in the driveway.
Not convenient but it may work until you can find a permanent solution to the driveway.