I got my N5 certificate earlier this year! I am currently working towards N4. This is a collection of resources I have used and found valuable while learning Japanese.

Apps

WaniKani for Kanji
DuoLingo for vocabulary practice

Websites

Tofugu

Books

A Dictionary of Basic Japanese Grammar
Nihongo Challenge N4
100 Essential Vocabulary for the JLPT N5

Videos/Podcasts

JapanesePod101
Nihongo con Teppei