Why they help everyone but me?

So my sister in law told me about a position available for her online job. I had the interview, she helped 5 others get the job I asked could she talk to her supervisor like she did everyone else. I never heard back. I asked my brother about a position at his job he helped a friend get on but now his friend doesn't want to do it my brother told me they're not hiring anymore. My aunt told my mom about a position where she works but she decided not to tell me about it and I believe someone else got it. I probably shouldn't feel this way but it just feels like my bro & sis in law is helping everyone else.
Why they help everyone but me?
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