If you have a 'squick', such as being grossed out by gay sex or BDSM, look at the story details and avoid any with codes for things you don't like. -
If unfinished stories frustrate you, each incomplete work shows "In Progress" or "Incomplete and inactive", usually highlighted in yellow. -
Only you can stop you from reading things that upset you. -
As an analogy, if you ignore the label and eat soap instead of candy, did the soap company cause the problem?