Was this a sign?

I was dreaming and kept hearing people say go to oxford. So I had a book a long time ago about oxford so when I woke up. I said I'd buy the book as I was sure I'd lost it in a move when all my books was thrown out by the new owner of my old house. So I was looking four something else than I found that book. I was surprised and happy. Then I started visualizing the life I wanted in Oxfordshire and Oxford college. I started imagining money and being a botany student the life the friends it was awesome. Then I picked up a book found in the table of contents a random page that gave me an idea about a business. I felt like I was on the edge of possibility. I felt so good holding the idea for that business in my mind the thought Itself was almost as good as the actual thing.

Then I stopped visualizing I got scared and kept thinking it'll be impossible to get in Oxford I felt like their was something blocking me from starting that business that I'd have trouble talking to others on the phone trying to make business deals lol.

Why did that happen why did I get scared and how do I get more signs and follow them instantly and obediently?