How is this normal, my family has created their old little world?

If you ever watched “The Village”, that is basically how I see my family. They have their own little world. Everyone of us kids (my sisters, and cousins) were home schooled. We went to 4-h together, and even joined karate. When I talk to people outside of my family they seem like a strange object. I never really socialized with people, even though we were in social groups, we all remained together. Now that I got a boyfriend and we’ve been dating for almost 6months, I spend most my time over at his house and with his friends. I enjoy this so much it’s amazing. The problem? My family I have went and joined the outside world. They constantly annoy me, at first they would show up at like 1pm and get me, with no warning. They did this on valentines day! Then after I tried to talk to them, they finally started to just wait till I called them, but if I call at 5pm asking for them to pick me up at 8pm, they say they can’t and they have to come get me when I called, but if I called at 8pm they would have come got me at 8pm. They make me feel terrible if I stay at my boyfriends house for over 3days. I’m almost 18, I make my own doctors appointments, I get my own medication (if needed), I go to my own doctors appointments, I have been trying to look for a job on my own, I go to college. I basically do everything for myself. I’m not immature, I don’t know if I sound like I’m being immature and not understanding them, but this is just the tad bit of what they do. I want my freedom. My WHOLE family is close, my mom only talks to her sisters, and her grandfather, and anyone that’s related. That’s how its always been. My 23 year old sister hasn’t moved out of the house, my 19 year old sister lives in an apartment attached to my grandfathers house that’s like 2 feet away from my parents house. They keep comparing me to them, but I am moving out at 18 (if I get a job), and I am not going to rent off of my grandfather, (who basically only rents to family). Is this psycho sh*t? Or am I over reacting?