Trump needs no help in making himself look bad.  He does just fine himself.  If you've followed his career and/or viewed his television show you'd see the things.  He is who he is and has always been rather arrogant and bombastic.  He is a self promoter.  It just doesn't seem to work well in his role as president where you have to work with others and be ok with not always having things go your way.  Compromise and self promotion are tricky to pull off.  
BTW, the economy tends to ebb and flow despite who is in the White House.  Changes take place over many years, for the most part.