I also matched last year in Phase II. In fact, that was my second time applying for the match, as I didn't match at all my first time 🙁 But anyway, I still remember how crushing, anxiety-producing, and overall terrible the process was. I also remember feeling pretty alone, with the only support coming from people on this forum. There really wasn't a lot anyone could say to alleviate any of those emotions for me, so I doubt there is much I can say to alleviate yours.
That said, there was one thing one of my reference writers told me that really helped. She said "internship is just a bleep in the radar of your career." And you know what? I'm kind of noticing that already, even though I'm not even finished with internship. I just went on postdoc interviews. The process is a lot easier and the internship application process never came up, and I do not believe it has affected me at all. I got several offers and ended up accepting an offer at a great training site. So they clearly didn't think I was of lesser value, or a lesser clinician, because of the internship process. I actually got an offer from a site that I applied to for internship last year! Same director interviewed me and everything. Kind of surreal really.
In regards to in-person interviews, I had the same thing happen to me. One site, which was my number one at the time, offered me an interview, which was awesome. Yet, they asked me to come in-person the following week. I could not afford to travel to California at such short notice, so I had to decline. It just added more stress to an already stressful situation. And, technically, sites are not allowed to do that. I ended up informing APPIC of this during one of their post-match surveys. Doubt it did anything though.
Anyway, good luck to everyone!