Complex sentence: Her income helps support her family, including an unemployed sister who is a single mother, but after unjust treatment from her boss, she quits her job de-thorning roses despite her family's vehement disapproval.
Split into simpler sentences: Her income helps support her family, including an unemployed sister who is a single mother. After unjust treatment from her boss she quits her job de-thorning roses despite her family's vehement disapproval.