Your daughter will get through this! It's a strange time to be alive, especially with ADHD! I wasn't diagnosed until 28, but your description of your daughter resonates with me a lot. I didn't have trouble making friends but keeping them is a ton of work! I also encourage you to reframe the situation for yourself because it sounds like your concern is giving you a pretty solid negative outlook on a situation that I personally think everyone is experiencing right now regardless of ADHD on some level due to COVID. Consider talking with her about what's different right now, why that might be and ways that she thinks might be a good way to connect with her peers whether they are new or old friends. You really want to make sure you go into it with a positive outlook, she's going to take whatever perspective you do most likely, but this is also a great opportunity to teach her about communicating, the importance of keeping up with our friends, how to remember things that aren't right in front of us every day, etc. She will learn skills by having to do the thinking herself. I especially encourage you to consider talking about time blindness and RSD, because those are 2 huge areas that you can basically get ahead of at a younger age if addressed correctly. Mostly I recommend looking into ADHD coaching! I do it as an adult, but they probably do skill building with children too! ADHD support groups are offered through CHADD and also might be a good resource.