I Want To Learn Japanese!

Hey,
OP This Side. I Come From India. I’m Currently In The Final Year Of Highschool And I Want To Do My Undergrad In Japan. But In Many UNI/College They Ask For JLPT. So, I want to learn Japanese but don’t have any idea about where to start or how to start.
And Can I Achieve N5 level Of Japanese In 3-4 Months.

Anything Will Be Helpful.
Thankyou ✨