[menshiki]

> I work onsite, but my team is remote, which makes it hard to develop any friendships at work.

I think this may be the core issue. You are in a new country with what it seems like not many opportunities to develop deeper connections. To me your conditions sounds more like adjustment disorder.

I was in a similar situation like you before and focusing on developing deep emotional connections with people around me helped tremendously. It's hard to be productive at work when there is little balance in one's personal life.

Also, do you actually like your job? What is your goal when it comes to this position? Would you be a happier person if you did something different? These are the question that you may consider.

[gidor]

After the experience I had at my job, I don't like it any more. Objectively speaking though, it's quite an interesting and pays really well (that's what made me stay). I don't have any goals in my career.

[musicale]

A job that pays well and occasionally exercises your brain sounds like a pretty good job to me.

Though I think Daniel Pink's book Drive said that people tend to be more satisfied at work when they have autonomy, a sense of purpose, and an opportunity for mastery, and that it can be worthwhile to try to find those things.