*Luckygirl, I'm sorry that you didn't get a Blue Badge. Please don't give up, appeal. By appealing you are showing that you believe a Blue Badge would help you maintain your independence.
It is definitely more difficult to obtain one nowadays. When I first applied for mine years ago, all my GP had to do was say my illness was progressive and sign it.
When it needed renewed last year, a GP's letter was no longer accepted. I had to supply evidence from the various health professionals who are involved with me and list all my medication. I had no face to face interview. Some days, I can hardly walk, other days I have less problems It should be what you are like on your worst day.
Please do not give up, it has helped my retain my independence and it can do the same for you.