Twenty minutes every day will beat five hours every other Sunday. Math doesn’t care about your vibe.

Frequency wins for two reasons. The total is larger than it looks, and short sessions keep the material warm, so your time goes into working rather than remembering where you left off. A long gap costs you the first hour of every session just climbing back in. Consistency is not only nicer, it is arithmetically better.

Cut your planned session in half and double how often it happens. Put it at the same point in the day so it stops needing a decision. Short and frequent will feel too easy, which is the sign it will survive.