It is extremely disheartening to go through rejection after rejection but you have to do your best to not let it get you down. You certainly dont sound like a "bad developer" - its just that the market is tough out there and companies can pick and choose. I have "failed" many interviews and I know it can knock you around. Its only a matter of time before you find the right job - not saying you might not have to take a more menial job in the mean time to keep the money coming in. I was unemployed at the beginning of the year - I was lucky I found another job after three months.