If you’re learning Japanese, what makes you keep going?

I stopped learning Japanese like three years ago. I was starting N4 and I knew limited amount of vocab and kanji ( around 100+). Idk why I stopped, maybe school?

Here are two things I need help from this post:

1-how can I do a comeback, idk know from where to start, and how to be consistent?

2- can you evaluate my Japanese:
ちょっと私の日本語が軸紹介します、さいしょうは小5時に日本語の勉強がはじめた、カタカナとびらがな前文おぼえた、でもねその時から今まで大したことがやりません、今は大学生です。