Most fandom conventions are very open and welcoming to new people, so don't worry about it.
I am pretty sure that you will meet lots of nice people at EF.
There will be quite a few people from Sweden there, so when you are flying to Germany, chances will be good that there are other furries on the plane with you.
Also another way to meet new people, share a room at the hotel with someone.
Firstly, it will save you money and second you have someone who might already be a regular at EF and he can show you the ropes. (not these "ropes"
)
Anyway, don't pressure yourself too much.
Will be my first furry convention as well but I have experienced a lot of anime conventions, so I expect a few similarities and a whole lot of new experiences. ^^