Practice
Practice
Solve, then re-solve on a schedule. Problems you solve come back at 1, 3, 7 and 14 days until they are automatic. Mixed sets train picking the pattern. Mock rounds put a clock on it.
Due today
New problems to try
Read a lesson first: problems from the modules you start show up here. Go to the course
Every problem names its LeetCode twin, so you can also solve it there. 0 of 3 solved so far.