Nothing is working on google shopping.

I have tried everything there is to try. Title and description modifications, high bids, query funneling, etc.

All of my products get low impressions, low ctr, and high cpc.

Why does everyone and their mom say that google shopping is so easy and performs way better than text ads? Does it really? Why do my campaigns never perform well?

Why do my competitors always come up first with product titles that don't even contain the query?

I don't know what to do, I need help. I'm sorry I keep posting about this, but I really want some answers. I've followed every guideline set by google and every ppc blog, but still, nothing.