I (19F) feel like an absolute burden when I'm there. We are in a long-distance relationship and have been friends for little under 6 years. I don't go to her place often (she lives with parents) but I'm going there in a couple of weeks to attend her graduation and will be there for about a week. 

I feel like I'm bothering and causing problems no matter what I do.. I'm going there by train and I don't really wanr her parents to drive to pick me up from station even though she says it' totally okey and they drive her sister around all the time. I'm scared of eating, sleeping and doing anything there because of my insecurities... what should I do? 

Also, I should probably mention that another friend of ours is coming, too and staying a little longer than me which is also scaring me because we don't know that well irl.