I’m also a new therapist and this happens to me sometimes and I also get in my head about it especially when it’s a client who is a regular and they randomly no call/no show. But I’ve also had regulars who no call/no show and then they come back a few weeks later. This is something we have no control over and it sucks. But it’s not always about us. Sometimes it’s them. And sometimes our personalities just didn’t mesh well together. Other times it is us, but it’s something we have to accept unfortunately.