Seems like you’re in a tough position. Sometimes it can be difficult to onboard, but especially in _another_ language.

My best advice is to use the team for support like your manager advised. Yeah, you might not be able to pay it back to them at the moment, but keep track of who you reach out to for help for two reasons:
1. You can ping their manager and your own to let them know how they helped and that could potentially positively impact their performance review 
2. When you are adequately ramped up, you can reach back out to them to potentially collaborate on projects or for knowledge share. After spending a couple months working on things, I’m sure there’s some value/insights you could provide from the perspective of someone that’s just onboarded. Maybe you have some suggestions on how onboarding could be improved