A senior-year ACT plan is an August-to-October sprint: one weak section, two full tests, and a hard stop when essays need the hours. It is not a junior-year rebuild. If you still need a first score in November, change the college list—not the laws of score release.
August
Diagnostic on enhanced clocks. Log every miss. Pick one core section. If summer is still open, steal the structure of a summer study plan and compress it.
September
Four to six hours a week on the weak section, one timed section midweek, one full test before the September national date if you registered. That sitting is the last comfortable date for many Early Action files: EA vs ED.
October
Only retake if practice is 2+ points higher. Otherwise switch the hours to essays. Last-date math: last-chance retake.
After October
December can still help Regular Decision. It will not help an Early Decision file that already went in. Stop chasing one more point when the rest of the application is thin: when to stop retaking.
The bottom line
Senior year is triage. One section, two tests, then the application. A six-month content plan belongs to last spring.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.