I guess you are kinda sensitive, right? you care how badly other people will treat you. actually, if you ask a person for help, and she/he wouldn't help you, then I don't think that must be your problem. maybe he'she isn't a nice person,huh?
I think, firstly, you should be self-confident. if other people treat you rudely or coldly, just take easy. Don't think of it too much,ok?
I hope you are happy and enjoy your life.