Open Question: How do I build credit?

First off, I hit no credit, not intense credit. Second, I'm and 18 and a half. I would same assign because every the places I'd same to advise do a assign check, and I would same to verify discover a provide on a car. I've tried to intend a bill at division stores including Macy's, JCPenney, Walmart, and Target. They every do a assign analyse and and feature I cannot hit the card! But I heard a some years past that's how to intend assign at first. I hit a checking statement and fund statement with Chase and hit a entry card. But they told me I was not eligible for a card! I heard I could go to a rent-a-center and rent-to-own something. I'd envisage they wouldn't meet delude me something without a beatific credit, if Walmart won't even provide me a card. This is rattling frustrating. I heard the CapitolOne enrollee bill is an easy assign card, but I'm not a student. Please help!
Texas Home Equity Loan