Hi, first time poster here.
This is probably going to sound like a very childish thread compared to most, but I'm hoping that most of you will have had experience of this kind of thing and so can tell me if I'm being ridiculous (which I probably am!).
I'm 18 and have recently started university. As a bit of backstory - I've never been that great at making friends, and the friendship group I've had growing up haven't always treated me that well (though I put that down to childish behaviour which I've probably been guilty of myself). I've never really been on the same wavelength at them, and although we get on I always had a niggling feeling that uni might be my chance to make friends where we're more equal.
Anyway, luckily for me I made some friends very quickly on. Let's call them Anna and Beth. They know each other from their course and live in the same halls as me. We tend to meet up at least once a week for a drink, and gradually we met somebody else, Claire, who again lives close to me. For the first time in my life I've been able to have a real proper laugh and I'm loving it. 
Last week I heard Anna and Beth pass my room in the direction of Claire's. With my history of having friends exclude me I immediately thought the worst, but managed to calm myself down. Since then though I've been seeing little things like A, B and C meeting up for meals without inviting myself or any other of our friends. When I do go up and say hi, I feel as though they keep bringing up their injokes as if to tell me that they don't really want me there. They both cancelled on our usual weekly meet up today, and I'm scared that I've managed to repel them like I do most people eventually. 
Reading this back, there's absolutely no evidence that they don't like me. I just can't shake the feeling though. I think I'm scared, homesick and lonely and I don't want to lose this good thing. I thought I was making a fresh start at uni, but all of my insecurities have come flooding back in this last week. I feel like I'm going mad. Please tell me it'll get easier? I don't want to be a social hermit for all of my life. 