I do not, but if you read chapter 12 of Cor 2, Paul talks about having a demon on him tormenting him, and he wrote that when he pleaded with God the 3rd time to take it away, God responded to him "My grace is sufficient enough for you, my power is made perfect by weakness".
There could be times you have a demon on you that you cant get rid of. That doesnt mean that you are doomed, it means that it is Gods will that the demon is tormenting you.
"For the good of those who love Him, all things happen"