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?? 
I agree and also earn bitcoin through different faucets just like you I earn also in Freebitcoin, Bonusbitcoin, adBTC, Moonbitcoin, and Fieldbitcoins. I also earn bitcoins by joining in signature campaigns, trade my tokens on trading sites, investing in bitcoin related businesses, playing gambling but too risky, mine in mining sites. And that's how I earn all my bitcoins.