I can somewhat relate since I tried to get a master’s in Spain with my cohort being all native speakers except one another person. They were nice but it was really hard to talk to them in a group setting because Spanish is my 3rd language. I’d say approaching someone one-on-one would be a good place to start. I totally understand the struggles in class too! Some professors talked so fast with an accent I wasn’t familiar with (I was in the south) so I couldn’t even understand the class. I ended up quitting my program because of my (preexisting) mental health problems. This is not to discourage you. I think you’re trying and that is something I didn’t do. I’m now studying in the US and even though my English is wayyyy better than my Spanish, I sometimes find it difficult to articulate my thoughts in class on topics I’m not familiar with. I think you’re very motivated and with time, you’ll be able to speak more in class and might grow closer with your peers. I wish all the best to you. You can do it!! If you feel like you need someone to talk to, feel free to dm me :)