I dont mean to say you implied it, but its easy to dig a larger hole when you believe you are special, or you have tried "all" the advice.
Every problem has a solution, and I beg you to search deeper to what you do even in task-paralysis states. That might be where your mission comes from.
It helped me to have a life goal that was bigger than life, ego, or energy. Maybe you havent found it yet. If you have, I apologize if I sound cocky!