Capt 111
If all else should fail there is a new device available that could (but I do not know for sure) help ease your's and many others' problem of pressure discomfort. I have been seriously contemplating getting one of these for myself as I too suffer often with ear pressure problems. So I know very well how painful it can be. Saying that, I have been flying commercially for over ten years and I have learnt to put up with a few days off now and then to alleviate the discomfort. In my case, the pain and pressure discomfort normally takes 3-4 days to go and then I am ok again for another 3-4 months or so. I would urge you though NEVER to fly if you have blocked sinuses or a head cold.
Whatever you do, don't give up on your dream!!
All the best.