How to deal with loneliness.

Hello 28f here, I just need advice or maybe just need to vent.
Its been my first year in Japan and I’m struggling with loneliness here. I know very little Japanese so I am not able to talk to many people. I am having a hard time at work too. I usually keep a low profile but I have have experienced bullying at my workplace, and I don’t really vibe with the other foreigners in my my area. It’s taken a toll on my self esteem. I’ve tried to find dates on apps with no avail so I have given up on dating here. I thought I would be ok with the isolation but with time it’s taken a great toll on me.
Every time I get back home to my empty apartment I get emotional. I feel just unwanted, anxious, sad, and always constantly doubting myself.

I wanted to know how I can deal with this or how I can make friends in Japan. Maybe share your own experiences so I know I’m not the only one. :’)