The safest way to store your BTC is to control your private keys and stash them in cold storage. While stashing away your Bitcoin is a great way to play it safe it certainly doesn’t leave much room to increase your btc holdings. Trading is worth your wild but carries inherent  risk. In 2017 I went on a hunt to find ways to earn interest on my btc holdings. I came across freebitcoin.in  and have used there services since.

https://freebitco.in/?r=5236033   

the site offers a hourly faucet, multiply game, a weekly lottery and various categories to place bets on.