A 3-month N5 timeline is tight but realistic if you study most days and keep momentum. The key isn't cramming more hours — it's sequencing: building vocabulary and kana fluency early so grammar and reading have something to work with.
Weeks 1-2: Foundations
If you don't already know hiragana and katakana cold, this is the only thing that matters right now — everything else depends on reading them without sounding out each character. Spend most of your time on kana drills and start learning the first 20-30 N5 kanji alongside basic greetings and self-introduction vocabulary.
Weeks 3-6: Core vocabulary and grammar
This is the heaviest phase. Work through N5 grammar points in small batches (5-10 per week) rather than trying to absorb the full list at once, and pair every grammar point with example sentences using vocabulary you're also learning — grammar in isolation doesn't stick. By week 6 you should recognize most of the ~100 N5 kanji, even if you can't write them all from memory yet.
Weeks 7-9: Reading and listening ramp-up
Once the grammar backlog is mostly covered, shift weekly time toward short reading passages and listening practice — this is the part that can't be crammed later, since comprehension speed builds with exposure, not last-minute review. Start doing timed practice questions in each section so you get used to the exam's pacing, not just the content.
Weeks 10-12: Practice tests and gap-filling
Take a full practice test under timed conditions by week 10. Whatever section you score weakest on, dedicate the next week specifically to it — if it's listening, do daily listening drills; if it's reading, do daily timed passages. Take a second full practice test in week 12 to confirm the gap closed before the real exam.
What to skip
Don't chase textbook completion for its own sake — a textbook that "covers everything" at a pace you can't sustain is worse than a shorter resource you actually finish. Also skip memorizing kanji stroke order perfectly; N5 doesn't test handwriting, only recognition, so time spent there is better spent on vocabulary and listening.
The practical takeaway
The 3-month plan only works if weeks 1-6 build a real foundation — rushing vocabulary and grammar to get to practice tests sooner backfires, because practice tests without foundational vocabulary just measure what you don't know yet rather than building toward passing.