My untrue thoughts aren't untrue because I've willed or deemed them to be so. They aren't true because they're just not so. Only the truth is true and what isn't, isn't. It's got absolutely nothing to do with what I want it to be, and thus am I truly free.
It is not within my capacity to determine my true reality and identity. It is my decision whether to accept my reality or not, but this appearance of choice can only be based in time. And time being temporal is thus temporary, and is only a matter of itself before I choose again and choose the truth.
My thoughts just show what silly thing I wanted myself to be, but I'm not that and can never be. It's not up to me what I am, I am God's creation, not my own, and definitely not the ego's. This probably isn't something the ego is going to like you to read... :-D