Failed the interview which was my only hope- Feeling really down

I am an expat living abroad so finding jobs is already hard. I have been jobless for over a year now and i applied to over 500 or even more jobs with no or barely any reply back. Only last week i found a company interested in me. I thought this was it. It was my only chance. I prepared hard for it and passed my first round but got rejected today in the second round. I feel so down and depressed now. I am losing hope i can find another job again. Its so hard to keep applying to jobs and hearing nothing back and on top of that getting rejected after u found an opportunity after so long truly is very heartbreaking.