You borrow rather than buy to launch a 51% attack against the masternodes.  This is a fundamental weakness with any Proof of Stake, or Proof of Stake like, system and is not just limited to Dash. I formulated the Second Pirate Savings and Trust attack on Proof of Stake in the following post https://bitcointalk.org/index.php?topic=897488.msg10182752#msg10182752 those of us who have been around Bitcoin for a while will remember the First Pirate Savings and Trust and other very large Bitcoin shorts such as Mark Karpelès of MTGox. Borrowed "stake" is what nearly brought down the fiat banking system in 2008, forcing massive intervention by central banks and governments. In Dash the problem is magnified because the minimum 1000 Dash per masternode encourages the setting up of masternodes using borrowed Dash.

Are you actually a noob?

Cryptocurrencies are volatile but actual investors never get 'skinned' by swings, only inferior traders trying to compete with superior traders. The same applies to cryptocurrencies, stocks, metals, or anything else.

You analyze long term prospects, buy, put the coins into cold storage, and unless long-term prospects change (which happens infrequently) do the actual hard part: wait and do nothing. Short term swings are of no consequence whatsoever.