How Do I Block Negative Energies?

My whole life I have been labeled sensitive. I have had several different experiences with psychic abilities as well as just being at a heightened awareness. It all started when I was around 10. I experienced a ghost in our house. It was a dark figure with blue/purple eyes. It was very scary experiencing that at such a young age. From there I have had dreams where dead relatives visit and tell me messages regarding the living. I also get the smell of roses when a certain member of my family wants to tell me something (also deceased). Many times I have to figure out what these things mean because often they happen before something occurs. An example was a friend of mine's husband was suicidal. 2 weeks before he attempted to kill himself I sat and had a conversation with him. I knew he was going to try something but was not sure what at that point. In the 2 weeks prior to his attempt I kept smelling roses. I mentioned it to others and they did not smell it. I realized that someone was trying to get through to me but was not sure why. When my friends husband did attempt his life, I knew exactly what the smell meant. My relative was telling me that I did all I could to help and to not beat myself up over it. Fortunately the husband did survive and later I told him of this event. He was astounded by it.

I also see orbs and auras. I had a pregnant friend and orbs were all around her. She was able to see them too. I also had a friend tell me that my aura is a rainbow often too. Needless to say these things have affected my life. I tend to scare men away because I become so in tune with them that it creeps them out. I dated a man for some years and we eventually broke it off. He and I remained in contact for years. I knew that we still had a connection even though we were apart. One random night I awake crying and yelling out because I felt the connection break. It felt like a gold strand that was attached in my chest to him had snapped and slapped into my body. It felt horrible. After that I did not feel the same way about him even though we had been apart for some years. I also started to have health problems too.

Needless to say I gain connections with people and when I do they are deep, rooted connections. I could feel a co-worker/friends pain when she would come into work. I would feel happiness from others. I can feel energies in rooms too. I am very sensitive to these things and it seems like it is interfering with my life. I hear others talk about energy blocks but I am not sure how to do this. I can center my energy but everyone else's leaks in and I end up sick, sad, or upset from it all. The other thing is that I seem to attract people to me that have lots of problems and issues. They tend to cling to me and I am not sure how to stop this from happening. I really could use some advice on how to block these negative energies from others so my energy can shine. If anyone has advice please talk to me... I don't want to end up being a hermit because of it all.:)