Hiccups usually stop right about when you stop trying to make them stop. A lot of things are like that.

Some problems are sustained by the attention you pay to fixing them. Effort keeps the system alert, and the alertness is what keeps the problem running, so trying harder tightens the knot. Sleep works this way, so does forcing a feeling, so does trying to seem natural in front of people.

Notice which of your current struggles gets worse the more you work at it. For one of those, try doing nothing deliberately for a few days. Put your attention somewhere unrelated and let the thing loosen on its own schedule.