You can add your BTC back to trading, but I suggest please be careful - careful because the stock market is very easy sometimes occur inflation
dont trust to any other investment site.some of them are scam, search and think before you do... i think try make your own faucet site and put some paid ads or monetize your sites like other faucets or sites....
Probably the Bitcoins is the most value than other currency on running time.So I think buy and sell bitcoin will be best growing idea to increase your money,try to invest your money to bitcoin.