I have been preaching, for some time, that the economy of the jackass will fail. Here is a link to some charts:http://time.com/money/5290948/stock-market-2018-7-investing-charts/
Basically, its starting to fail. Its down 1.2% since the first of this year and has been waaay too volatile. Its virtually impossible to time the market but there are long time trends and this one seems to be on a down curve. If you can't afford to hold on through a downturn I would suggest you get out right now.
The reason I am posting this is because I have had waay too many friends who get out when it hits bottom and never get in again so they just lose their money. Remember, its a veritable surety that if its behaving this way during a Republican administration, we are going to have an economic downturn as this this seems to be an historic fact.