I'm not sure how Etna can have been dormant for two years when it erupted at least three times last year:https://www.bbc.co.uk/news/av/world-europe-39295585/sicily-s-mount-etna-erupts, although I guess 18 months does round up to two years if you're especially lazy.
I'm pretty sure ED would let us know if there was any news..
It's absolutely worth being patient about it.
Be thankful we're on topic
As the other guy mentioned I think it's more pure excitement at this stage rather than simply being impatient. Major hurdles have been jumped over and hoops navigated, so really we're at the end stretch. Personally I'm stoked, but will be equally happy if mine doesn't arrive until next year.