Not accepting the official 9/11 story is a big scary leap into the unknown for most people, that shatters life long deeply held beliefs- and not just political beliefs- but it shatters your basic faith in people and your entire outlook on our culture, media, society, and even what is true and not true.
I know it did for me. I see American society far differently than I used too.
I guess the biggest change for me- how I have "coped" with this acceptance- is that I am literally skeptical of everything I haven't personally experienced or witnessed. I follow no "ism", belong to mass group or movement, don't feel a sense of "patriotism" for anything larger than my city or what is around me.
Abstractins like "nations", and "ism", and ideologies, mean nothing to me now and I think anyone who subscribes to them is a sucker. All you got in this life, all you can trust- is what is in front of your eyes and around you. Family, friends, locality. And anyone who tries to get you concerned or emotionally attached to something larger than that- is using you for a lie and for their own selfish interests.