Do Hard Things

This is kind of piggy-backing off of what Adam said below.

In addition to committing yourself to a rock solid resolve and consistency, you should also take this opportunity to do some of the things that you have been putting off. Have that difficult conversation with your spouse that you have been dreading for months (or years). If you are an unbeliever, consider the claims of Christ and call out to Him in repentance and faith. If you have been "dating" the church and have not joined a group of believers who will keep you accountable and help you to grow, find a good church and join them. Confess your sins to a trusted friend who will help you be more accountable and will help you work through your failures.

Some of the most convicting reading I have ever done is Jonathan Edwards resolutions found here.