Austria was at war and both the affluence of the nation and the ability of the aristocracy to support the arts had declined.
Toward the end of the 1780s, Mozart’s fortunes began to grow worse. He was performing less and his income shrank. Austria was at war and both the affluence of the nation and the ability of the aristocracy to support the arts had declined. By mid-1788, Mozart moved his family from central Vienna to the suburb of Alsergrund, for what would seem to be a way of reducing living costs. But in reality, his family expenses remained high and the new dwelling only provided more room. Mozart began to borrow money from friends, though he was almost always able to promptly repay when a commission or concert came his way. During this time he wrote his last three symphonies and the last of the three Da Ponte operas, Cosi Fan Tutte, which premiered in 1790. During this time, Mozart ventured long distances from Vienna to Leipzig, Berlin, and Frankfurt, and other German cities hoping to revive his once great success and the family’s financial situation but did neither. The two-year period of 1788-1789 was a low point for Mozart, experiencing in his own words "black thoughts" and deep depression. Historians believe he may have had some form of bipolar disorder, which might explain the periods of hysteria coupled with spells of hectic creativity.