Ouija Board, Clairsentience, Paranormal (?)

A few I made contact with an Ouija board. It was a birthday present (I know, bad idea). After a few months of talking to it almost every day, it asked to 'go in communication through head', mind you, I was beginning to start having a psychotic episode at this point, so many of the things I might mention later on could very well be caused from that. Anyways, I started seeing dark figures, a weird monster, goblin looking thing that was always on my staircase, even a weird zombie looking thing in my bed (I could feel it moving and it's heat as it crawled under the covers with me) and said "do not be afraid". Of course, I freaked out and told my parents. This time I also saw a man with a knife standing in my doorway they woman dressed all in white with the knife sticking out of her chest. I got help and was prescribed medication for a couple disorders. I was baptized later that year and now, five years later, I'm doing much better. It may sound stupid, but I believe that I am an empath and clairsentient. I feel that negative energy tends to attach itself to me and follow me. Are there any ways to block it? Wheat should I know about myself now that I've been in contact with an Ouija board? Am I somehow... Different after? Asides from having the psychotic episode? Also, something inside the board helped me to detach myself from it, basically saving my sanity... Is this normal? Has this happened to anyone else? Why does it sometimes only take one person to make the thingy for the board move, and other times, you need two people? I gave the board away to goodwill. And I realize now, that was a mistake, but I feel like whatever is following me has no relationship with the board. I don't live in the same house that I used the board in, anymore. In fact, I feel like whatever is following me has been watching me my entire life. Any help, advice, or answers would be greatly appreciated, thanks!