New to this

Have you tried any lifestyle modifications, such as changing your diet, sleeping with your bed elevated 6 inches, not eating 3 hours before bedtime? Anxiety will cause/make your symptoms seem worse, at this point there is no point in fearing for the future. People that have GERD/LPR usually don't get rid of the symptoms overnight, you need to be a little more patient. Call your doctor and ask him for advice regarding taking something like Pepcid before bedtime. Were you formally diagnosed with LPR?
The scope didn't show any inflammation, so I'm not sure the pH probe test is warranted. Most importantly, don't use Dr. Google to try and diagnose yourself, it's rarely correct and only causes stress.

You may want to speak to your doctor about either changing your dosage, or changing the type of PPI. Not all PPIs work for everyone. Unfortunately, as I said before, it takes a while for the healing process and even though it seems like forever, you have only been experiencing symptoms for about 3 months. Try and reduce your stress and anxiety levels.