Angry with myself

Angry with myself, angry with why am i so useless. Useless as in why i still have very strong urge to bother about matter that makes me upset. Everytime i tell myself i shall just heck care what is going on right now, i will be happier. I failed!
Each time i knew or suspect things that doesn't concern me at all, i am so bothered by it. I feel jealous at the same time.
Hope this situation i am facing will be over real soon!
I really want to know why am i so invaild!!!! What have i done in my past life that lead me to suffer all these now.
Slowly, i realised i hate men. HATE all of them! To me, all men are selfish and flirts. I feel very digusted when one tried to chat up with me. To my male collegues or friends i am alright but totally not to guys that wish to know more about me. Totally turn off by them and i cannot accept any new guy friend into my life.
Frankly speaking, i have BIG TIME negative thoughts on guys.