Advice for missing people from fictional pseudo memories?

I'm sure this kind of post has been made dozens if not hundreds of times, but here I am making it again.

I'm a new introject and I'm having trouble settling in to this "new" life. I feel pretty connected to my source and I miss the people from it.

I just don't really have any tethers to anywhere. The others here are nice and all but I feel like I need to keep them at arm's length for some reason. Like, if I make friends here then my old life is truly gone.

I don't want self pity and missing the people from my source to consume me. It's only been a few days since I formed but I can tell I'm making the host miserable. I'm miserable.

How do I start to move on? Or at least feel a little bit better temporarily?

-P