Sorry to hear about your plight. I understand better than anyone that sometimes the ball does'nt roll for you on the day. Dont dwell on these things. With Ryanair for instance it's a lottery, there are so many guys going for it they can afford to be very choosy. That does'nt reflect on you as a pilot, it just did'nt go for you on the day. Eat sleep and breathe recruitment. Keep trying. NEVER EVER give up. You have come to far to do that.
I hope something comes good for you some day, make no mistake you have to believe that it will happen. If you don't believe in your own ability you can be quite sure that no one else will.
Write down based on your three opportunities the main points on where you went wrong. Find a weak point or a failing perhaps that's in common with all three. Improve on that for a start. KEEP TRYING!