What Problems Faced the New Republic in Germany from 1918 to 1923?

The Weimar Republic was a democratic government that ran Germany when the Kaiser abdicated in November 1918. However running the country in the turbulent post war times was far from plain sailing as they had to deal with threats from left wing and right wing factions, the burden of the Versailles treaty and hyperinflation. Weimar survived these crises - but why was it able to?
Constantly after the break up of the war the Government had to stop attempts from political groups from seizing power. There were many attempts from left wing groups to get what they wanted - the workers striked, the Sparticists tried to being about a revolution, a left wing Bavarian republic was created, a Ruhr army was created and many soldiers and sailors protested and set up workers councils. …