Demons in me

Tried and tested so many ways to put the demons to rest. They are born out of me and exist because of me. So how come they seem more powerful than me? Are they truly more powerful than me or I have merely assumed it? Where lies the power then? In that which is my creation and reside in me or the whole of me? If the demons are created by me, they can be destroyed by me as well.. But then as long as I exist, demons exist too. So, the only way to destroy them is to destroy myself. Is there any other way?