When a topic is presented in the Weekly Lesson, you’ll usually see the following parts:
•    My explanation
•    Links to other explanations (e.g., Yepes Grammar Manual, Acceso online text)
•    Practice activities built into Sakai (e.g., “blue-box” questions, handouts, listening/reading activities, etc. Some are graded, some are not)
•    Links to various practices on other websites (e.g., Interactive practices linked on Yepes Manual)
•    At least 1 graded practice (Labeled P# in Sakai. These have unlimited attempts and are not timed.)
•    A graded quiz (Labeled Q# in Sakai. These are in the next week or so and are timed with 1 attempt.)

It’s going to be up to you to gauge how much practice you need for each topic. (Maybe present tense is no big deal for you and requires less of your time, but preterit vs imperfect is a problem.) The interactive practices you do on external websites do not report to me, so it is your decision how much (or little) of those to do. However, you do need to practice enough to be able to do the graded practice and quiz successfully.