they know my full nameOnly if they work for the ISP. Do they know your name? IP is irrelevant in that case.
Sorry. You have to assume they can locate you. Check your local laws and contact law enforcement.
That's a scary situation to be in. Don't give the stalker any opportunities. Makes sure you walk places with friends and let people know where you are. Things like that. Best of luck to you.
Is it realistic to refer to someone who lives half a continent from you, as a stalker?
If you know their email address, you can certainly block incoming emails from them, or choose not to ever open anything that they might send.
As they are not local to you - you can choose to not contact them.
And, you should have attempted to block their email address, telephone number and blocked text messages, too.
There's probably not a lot more that you can do, other than contacting law enforcement, but I don't know what they can do when the person lives hundreds of miles from you, in another country.
Don't try to contact that person through any method, even to complain. Don't respond to emails, texts, etc. Not sure how effective it would be to actively refuse any items that you might receive. The idea is to avoid giving this person any additional opportunity to annoy you.
Stop worrying about an IP address. I'm not sure about Europe but in the US a surprising amount of personal information is public record. And what isn't is often available for a fee. Think background checks and PIs.
Since the stalker isn't exactly close, I agree with the others who said break all contact. Chances are they'll get bored and turn their attention elsewhere. If it persists, definitely seek LE help.
Question Answered
I'm assuming, but if you erased your initial post to replace it with this, you are doing a disservice to the discussion. People replied to your question and now that's gone. You might as well ask the mods to delete this thread.
With respect, I disagree.
The OP asked a specific question about stalking, and one thing anyone who has been on the receiving end of such attention will confirm is how persistent, inventive, creative, and obsessively determined stalkers tend to be.
If the stalker knows that the OP posts here, and under what name, she (and, unfortunately, most of the people on the receiving end of a stalker's attentions tend to be female, Hollywood's world view notwithstanding), the OP might have come to the prudent position that it is better to erase their initial post.
Disagreement accepted, but I'm being pragmatic, nothing personal. If the gist of the thread has been erased, then IMO might as well delete the thread in its entirety, especially if the stalker knows she posts here and her name.