I Believe that I have been curse can someone please help me

i need serious help. i beleive someone has done something against me and i have no idea who. my friends and family are also affected when they are around me for example. when i lived in california i meet a couple that invited me to there house every week. so after we got close they started to have marital problems and money problems. shorty after i left california everything was fine. samething happened with my mother and her boyfriend when i lived with them shorty after i got home to NC. those are just to examples. i'm not talking about afew bad things. i'm talking about one thing after another and it just doesnt stop. i have a feeling that my ex-wifes step sister may have something to do with this. since she is the only one that i know, who knows people that would do something like this. i ask for you to please help me in anyway possible. even if it is point me to someone or a website that can. i live my life and let others live theres. i really havent done anything to hurt anyone on purpose. so please help i do not know where to turn to next.