I'm in the US and absolutely in the same boat as you. I've been searching but cannot find a single supplier in the US that is currently stocking it. I'm sure overseas orders would not make it through customs, so I'm not even looking there.
I've taken Piracetam for about eight years on a near daily basis at between 1200 and 5000 mg per day. I've been without it now for several months. Like you mentioned it gave me a great sense of mindfulness and presence. It's proven for me to be the most effective treatment for social anxiety by far. I've used many other anxiety treatments which successfully treat general anxiety and panic but do nothing to really help social anxiety specifically, at least not the way Piracetam does. I currently use clonazepam daily, which staves off the panic attacks and anxiety episodes but also makes me sleepy and demotivated. Piracetam wasn't stimulating for me at all but it did provide a certain energy and mood lift and made it so enjoyable to actually be around people and interact with others in social settings, something I never experienced before Piracetam. The world just felt so much more welcoming and cheery. Unfortunately, my antisocial tendencies have returned since I've stopped taking Piracetam. I'm actually quite bummed about it. Of course the current pandemic climate doesn't offer many social opportunities anyway and certainly hasn't made my anxiety/depression any easier.
I've tried most of the other racetams but none work the way Piracetam does for me. Aniracetam and Noopept both give me an intense sort of rebound anxiety and don't have the same life brightening effect that Piracetam has. Coluracetam sometimes (maybe 20% of the time) feels very similar to Piracetam, but it's inconsistent and it gives me an annoying feeling of mild arrogance, best way I can describe it.
It really annoys me how the news article accuses Piracetam of being a dangerous drug. That's just not true. Piracetam has many years of research proving it's safety. It actually has one of the best safety profiles of any drug on the market today.
It's sad for me to think I may never again experience the peace and simply happiness and the relief of my social anxiety that Piracetam gave me.