If there is a force compelling you to act, even if there were anything (barrier) to restrict it there is no guarantee it would stop the impulses forever. With time, these urges build up and can then subsequently leak or explode without conscious control.

So, basically, that barrier would not be enough without getting deep into the trenches and knowing the root cause (or trigger) of these uncontrollable urges/impulses.

Knowing the trigger will enable you to have some semblance of control. Anything else would be mere repression of urges. Not knowing the trigger for these impulses is 'dangerous' as you would have no control over these.