Am I Psychic Or Crazy?

I am 19 years old and on my last birthday I went to see a psychic. She told me that she partially sensed psychic ability and she wanted me to keep a notebook of thoughts or things that popped in my head. She also said that she sensed many people around me and asked if I ever felt them. I will get this bad gut feeling and most of the time something bad will happen not to long after. I used to live in an old house and was often alone. The only problem is that I always felt scared and got the feeling like someone was watching me. I didn't sleep in my room for 18 years due to the feeling that someone was around, I always just used the excuse that I hated my bed. I then moved into my own apartment and noticed that I didn't feel as anxious. I was in the apartment for maybe 4 months until I realized the feeling was creeping back. I would feel anxious, like someone was watching me and at times just felt like I had to leave and get away. I am now in a new apartment and so far I feel ok. I don't always feel alone but I am not as anxious as before. Also I work at an assisted living home and I am the only one in the kitchen on Sunday mornings. A few Sundays back I was setting up the dining room and I saw a dark shadow. I thought maybe the other girl had come into work, but then I realized no one was there. Also I recently attended a funeral not long ago. Everything went fine until I got back into my car to leave and I couldn't breathe. I started crying because I was so overwhelmed with such an anxious feeling. Maybe I was just sad about someone so close to my age passing but I am not sure. One last thing is the psychic mentioned I am afraid of mirrors which I am. Will someone please help me deal with this or let me know if you have the same problems. I want to know how to tune into any ability I may have, or am I just crazy? Thanks.