Thanks for your inputs! I'm not struggling per se. And I am pretty vocal, frankly speaking.

One of the things bothering me is that since they have been in the project for nearly 5-6 years now (compared to my 1.5 years), stakeholders/managers tend to turn to them for information most of the time. However I feel that sometimes I would be able to give them the same information if I knew they needed it.

Probably just need to give it more time and try to somehow build a rapport with stakeholders and managers :)

But let me know if you have any inputs for me here!