am i needed???

sometime i feel jealous with someone ,, she always make everyone comfort with her , she always help people around her , she always success help her friend , sometime i want to be like her , i want to make happy to everyone around me , but i iknow that never ever happen ,, because i'm sucks , arghh ,, please let me help you guys , please share your problem with me , PLEASE !! why can you guys trust me ?? WHY?? i'm tired to be like this , huhhuh :`(