<human>: Can you condense the text into three sentences or less?

Six months ago I (22F) ended a bad relationship and since then I've been alone and enjoying it. I didn't want a relationship, I didn't want anyone in my life. Then I met Brian (25M) and Brian was nice. He was always asking me to go out for fancy dinners, to a nice bar or to some shows and he kept texting me all the time. It was obvious this guy was interested in me but for a while I just enjoyed his company and didn't think of him in any other way. I had set up my mind that I needed some alone time. But things changed, I gave him a chance and I'm really starting to like him, really hard! We've only been together for four days straight now (I know it's really the beginning of things).
Thing is I'm already afraid of myself...I am very self conscious and it takes time for me to get used to someone and  while it was all so easy going out with him when I didn't have feelings and didn't care, now I'm overthinking everything! It's starting to get harder for me to find something to talk about or initiate a conversation because I feel pressured into saying something good all the time otherwise I'm afraid he'll get tired of me and leave. This wouldn't have happened if I hadn't given him a chance. I knkw it's normal to have moments of silence in a relationship, but I think I'm just stressing too much this will end. How do I channel this nervousness and relax a bit? And what do I do to make things interesting?
<bot>: I was fine alone, started a new relationship, now I'm stressing he'll find me boring afterall. How do I relax? What do I do?