I appreciate everyone's responses!
I think that right now, one source of stress is that I have two new connections, with all the excitement and uncertainty of seeing how we fit, and the newness, and the shiny...
But also the crush. Feeling crushed out is such an ego boost, but also so draining! And I know it's just temporary NRE, and I'm doing everything I can to keep my head level and sane.
I love the excitement, and feed off it, but I also know I can only hold so much of it in my head and heart at once, so I'm trying to find balance, balance, balance. Once this part fades, my capacity in general may expand.
Also, it does help to remind myself that I don't have kids, or pets, or a marriage, or any of that, so maybe I totally do have the capacity to nurture a network like this. I guess time will tell.
I'm grateful for all of your responses!