I get triggered by puting timelines on myself about what I "should" be feeling.
Actually having strong emotions can be hard for me, but it is the "shoulds" I do afterward. I feel sad about something not going as planned (okay), then it becomes a huge sadness about what I have lost in the last two years, then I obsess about why I am not further along in recovery....
It is a quick downhill slide from there.
If I get out of the shoulds, having the emotions are hard, but eventually freeing. I have to go through the feelings before I can heal. That was really hard for me.