Need help with contradictory statement

How would these 2 quotes be considered as contradictory?

"The worst hell you will ever face is the hell you create with your own mind."

"I’m very capable of changing to anything I want to change to."

Solution 1:

The first one says that one's mind cannot be truly changed and that is the cause of a bad situation.

The second is a poor way of saying I’m capable of changing myself, or my mind, to whatever I want or in any way that I choose.

They make contradictory claims about the self or the mind. The first does so generally while the second takes it personally. Some more detail about where these appear and why they need to be compared would be helpful in keeping this question open.