Do I need an accountability partner or am I just really lonely?

Like many others I study way better with an accountability partner. I can pretty much only study with other people, otherwise I lose all motivation and/or feel down. For context, I'm an international student but all my classmates are from here and I still haven't been able to make local friends. I sometimes find study partners but they're temporary and the relation is just professional.

I keep on making international friends but they either move away or... That's it, other than that I'm good at keeping them. I'm trying so hard to find sustainable (time and money-wise) hobbies with locals but it's hard to battle the loneliness in the meanwhile.

I think it's probably a mix both so I guess what I'm wondering is how big of a proportion is loneliness.

Input on this? Been in a similar position?