The five Niyamas are not rules to follow but commitments to return to: small ones, kept over time, at different depths. Together they form the second limb of yoga, the daily work of becoming who you already want to be. They are the second list of two; the first, the five restraints (Yamas), clears the ground these build on.
The Five Niyamas
Yama clears the noise; Niyama is what you build in the quiet.
There is no order to keep and no score. Start with the one that names something you already feel.