These graphs are so clear about what kind of blockages Iron Pentacle work can clear out, and it matches my own experience so much, I had to share it. Of course these are just examples, if you have blockages they could be totally different, but it gives you a starting point for self examination.
And here is a pretty good article about how the iron pentacle directly faces many of society’s shadows and blockages: http://faerywolf.com/iron-pentacle/ since the Pearl Pentacle is about community, it needs the Iron Pentacle to work. They are two sides of the same coin. The Pearl Pentacle is the Iron Pentacle and vice-versa. But one starts with healing self before healing community and then works back and forth between the two from that place.
(again, noting I am not a Feri intiate, I have just done a lot of research. Both these links are by folks who are from the more eclectic new Feri. I am more interested in the traditional form, but not all things new are bad of course!)