Complex sentence: In 1981 he opened a photo gallery in the Haight-Ashbury neighborhood for a short time, then when he struggled financially eventually gave up on trying to earn a living through commercial fashion photography and closed the gallery.
Split into simpler sentences: In 1981 he opened a photo gallery in the Haight-Ashbury neighborhood for a short time. When he struggled financially he gave up on trying to earn a living through commercial fashion photography and closed the gallery.