It's Sunday, so today there are no scheduled readings. Sure, if you want you can look back to last week and "catch up" if you missed some readings, but don't worry if you get behind, just restart tomorrow!
Use Sunday to celebrate, and to find a group of people who worship. Use Sunday to pray, even if your prayer is, "God, not what I want, but what you want--Your Will be done." You can find rest in praying like that.