Hi Look for suggestion. Should I go to east coast for an intervi

I am looking for a job and got 3 interviews. two in the west coast, one in the east. I failed two of them and now I am thinking weather I should go to east coast one. I really feel disappointed and discrimination exist. the flight was paid for that company along with hotel. it is a big firm. but i fell so discouraged. I failed two of them and I probably will fail that one as well. maybe i look bad or maybe I am chinese. i don't want to waste my time. it takes a day. any advice?