If you don't have enough of the required skill to even attempt a disarm, I daresay your character will just have to lump it, and take the damage.
Rules, p.10 wrote:
A trap that is not disarmed is discarded after it is
Traps, even unavoidable ones, only ever go off once. No infinite death spirals. Use your second action to lick your wounds, or grumble about poor character choice.