Short of possession, the Devil, or any other spirit, cannot make you do anything, at best they can suggest, lure or tempt. Think about it for a moment, if you are possessed, you are not in control, so how can you be responsible for your actions, the possessor is.
The awkward fact is that we are responsible for our actions because, like it or not, conscious or not, we made the choice to do the act. This choice is why we are “damned” by our actions.
I cannot help but laugh at this idea of being damned, it is so like us to create our gods in our own image. Judgment and punishment are what we would do, so of course our gods have to do likewise.
Salvation comes from our learning of such things so we can make better choices. Grace comes from the simple idea that no matter how lost we get in the “illusion” of this reality, our true selves are unaffected, we remain a part and parcel of God’s totality.
So awaken to your choices and by becoming aware, you will do better with each attempt. Just remember when you slip up, be kind to yourself, learn from it and remind yourself, “Oh no the Devil didn’t.”