I would also teach this:

One of the hardest things for us is righteousness, doing good things. We know that we have to be righteous but we’re not good at things so righteousness seems impossible for us.

Well righteousness is one of the gifts of God! We are considered by God to be righteous through our faith in Christ! So not only do we win with salvation but we win through righteousness though faith in Jesus. And I’m not making this up, it’s scriptural!