Do I even need my own Website?

I'm trying to get into affiliate marketing. I am also far too gullible. I have lost count of how many "Guaranteed to Work" affiliate programs I've bought, then returned. I've got stuff with ClickBank, and some other site that keeps trying to get me to "upgrade" for only $$$. Now, I see a site from a lady who made a ton of $$ without having her own website. Can I be a successful affiliate marketer wihout my own website ? This is SO exhausting.