Many people use short term period strategy to keep their asset has income and I think that is good idea. Long term period strategy can make you lost patience and asset in big value but short term term will give you result and experience in 1 - 2 days. Bitcoin looks bad but can survive but I see eth and xrp more promised than btc, they have more significant price action that can be use to make money. See their history and trends, never forget your stop loss and follow your own rules.