Afraid of being closer

The title spells it all, yes I am really afraid to be closer to any of the friends I have except for my secondary school friends. Firstly, the reason why is because I am a very sensitive person. So lets say if I feel that your attitude towards me change, I will feel it right on the spot without you telling me. You can say it is a good thing because then I will be able to know who I can make friends with who I can't or rather who might not be able to be with me as friends forever. But however the bad thing is, it will bother me a lot and i will always feel that it is my fault thus affecting me to be really upset. I know I shouldn't feel this way because not everything I say to that person, and when that person feel sad or angry is entirely my fault. I really really wish that particular someone that is closer to me can really understand where I am going from and I believe that a special friend must be able to understand you well enough before I can really term that friend into my special friend/best friend. I will not take it to heart now because I realize life is too short to be angry or getting upset about things that doesn't go your way or the way you want it to be. I realize sometimes in life, you just gotta learn how to let go because this will make you a much happier person. I shall now focus on the people whom I love most and forget about others who are angry or getting upset with me over small matters. I will not be the Wendy I used to be, constantly being afraid of offending others or trying very hard to please everyone. As the saying goes, "I can't tell you the key to success, but the key to failure is trying to please everyone."