One of the best ways to improve your readiness score as reported by the Oura app is to increase your HRV while decreasing your resting heart rate. To learn more about what I've done to improve my HRV, check out this article and the accompanying YouTube video. Additionally, it might help to accumulate more restorative time during the day. Oura measures restorative time by keeping tabs on your heart rate and body temperature. One way to accomplish that is by better managing stress using the techniques I've discussed in this article.