I have been earning BTC through different claiming faucets like BTC clicks, Freebitcoin, Bonus bitcoin, adBTC, Moonbitcoin, Fieldbitcoins with no referrals for about 4 months now. It is so hard. Can someone tell me how can I earn more?? 
Try to invest your money in gambling. Many people earned big amount of bitcoin because of the gambling. I am also a gambler and I win big amount of bitcoins. I can say that gambling is really profitable.