Straight answers
How should I prep for the SAT if English is my second language?
The SAT is administered only in English — there is no Spanish-language version of the test. What does exist: students identified as English learners may be eligible for EL supports at in-school (school day) administrations, including translated test directions, an approved word-to-word bilingual glossary, and in some cases extended time, all arranged through the school.
Ask the school first. EL supports are set up by the school's coordinator, apply to in-school administrations rather than weekend test dates, and translated test directions and approved word-to-word glossaries generally don't require the lengthy approval process that disability accommodations do. Families frequently don't know these exist because nobody mentions them.
For study itself, the highest-value work is vocabulary in context rather than vocabulary lists. The Reading & Writing section rarely rewards knowing a rare word's dictionary definition — it rewards figuring out how a word functions in the sentence around it. Practicing that inference skill transfers; memorizing a thousand flashcards mostly doesn't.
Read English at length outside of practice — articles, nonfiction, whatever holds attention. Ten minutes daily of real reading builds the sentence-level fluency that makes timed passages feel less like translation and more like reading, which is where most of the time pressure actually comes from.
Brainrise's interface, tips, and parent dashboard are fully bilingual, and the AI coach will talk a student through a question in Spanish — explaining the reasoning, the trap, and what to watch for next time. What stays in English is the test material itself: question text, answer choices, and the written explanation. That's deliberate, because it's the language of the actual test, and practicing in it is the point.