Complex sentence: He toured around venues in Northern England, although he was not well received, and was booed and hissed while performing in Blyth, Northumberland; he had periods of unemployment--up to three months at one point.
Split into simpler sentences: He toured around venues in Northern England, although he was not well received, and was booed and hissed while performing in Blyth, Northumberland. As a result he experienced request periods of unemployment--up to three months at one point.