You mean this one? It's nearly three hours. I do absolutely agree that it is dangerous to oversell poly, but both work with attachment styles if combined with materialism as well as reframing ones relationship ideas is good. Again plenty of people are living realities that aren't as they are sold to us, queer and non queer alike.
https://sites.libsyn.com/476973/the-boys-get-reeducated-shoeless-in-a-polycule
Polysecure / Polywise, and other books exist.
The core of them are that there are multiple alternatives to the default diadic two person relationship. The alternative are easier to handle with awareness of attachment styles, that we can be nets of support, nurture and care for each other, but that we aren't able to fix other people and that when idea and reality clash reality wins.
Plenty of queer cuties are living in family and relationship networks that are not only of two people and if you want to be part of parenting a kid, that is possible. Even being a parent/dad/mother is possible, both via the sexual way or with medical support or due to a social setting.
There are plenty of ways to live. It is likely good to figure out what role you would like to have in your relationship and it likely isn't that of therapist (which likely wouldn't work in any case due to the double role). So outside support and transparent relationship styles might be good for you.
A week is very early and it is understandable to have thoughts when it is your first relationship. Keep talking with external support systems.
You don't have to shoulder your own stuff alone, neither have you to shoulder their stuff alone, neither do the both of yours have to shoulder stuff alone.
VMs in which Windows hosts fors RDP run are my solution.
However I try to not having to use Microsoft systems which makes a lot of problem go away.
For a majority of tasks Linux daily drivers are fine, however at work we have plenty of computers with varying operating systems, some even from before 2000.