I do believe in waking up each day with the with the what-can-i-do-on-my-end-to-build-this-marriage-up thinking, but not the idea that you must constantly be 'doing penance' or 'earn forgiveness' for your transgressions.
Forget the former things; do not dwell on the past. See, I am doing a new thing! Is 43:18-19
If it seems slow in coming, wait. It's on its way. It will come right on time. Hab 2:3