How do you make Japanese study something you actually look forward to?

I’m around JLPT N3 level, at least on paper. My speaking’s still pretty basic, but somehow good at listening.

I work at a Japanese company, so I thought that would naturally help me get better. But it became the opposite. Every time I try to study after work, it just feels like I’m doing overtime and it’s starting to make me hate studying.

How do you guys make studying Japanese interesting? What kind of study methods do you actually enjoy? I need some ideas to get that spark back.

For more context, I used to take classes with native senseis. The class environment brought out my competitive side, but lately… meh. I started to forget some kanji and it actually scares me that I will soon forget everything.