Affiliate Marketing Secrets

heard alot of good things about wealthy affiliate university, my husband got me a new laptop for my bday last week that is meant for home biz use. My question is where to start ? I was thinking of signing up with WAU.. its 47/MO. I have biz and marketing exp. . I just don’t know ..any Affiliate marketers out there that can tell me where to start ? i know in businesss you do have to spend money to make money but I am not interested in a scam, obviously ..So, if you were me what would you do ?