Knocked you need to hang in there. I'm 13 months finished now and not even a whisper of a job interview. Cant get anything. Key is to keep yourself positive and keep your licenses current.
Get a job, doing whatever! It's money. It'll pay for your currency and renewals. I just renewed the MEIR last week, some say I'm mad the way things are. But I figure I'm interview ready for whenever the time comes.
You've got two interviews and havent gotten through. That's hard luck. But at least you've been called for two!
So you come across well on paper, maybe not so well in person. Get yourself in the right frame of mind and start again. Figure out what and where you're going wrong. Maybe meet with someone who knows about interviewing people and see what they say. If it's the simcheck that's getting to you, do some sim time if you cant afford it get flight sim. First things first get your license renewed. You can do the IR on the sim which makes it much cheaper.
You've worked so hard to get your license, dont give up at the first hurdle. If it was easy everyone would be doing it, so keep the head and dont give up...yet!