Coins should always be considered in a safe storage, there are lot of wallets and platform that could be used to hold coins, both of this has good side and bad. Where will you choose to store or hold your coins, in a close source wallet (exchanges) or an open source wallet?
your honestly earned coins I will store on your local wallets with private keys. it is very important to do this. after all, this is your earnings and someone for a long time. it is very important to understand the responsibility and not to lose the keys