Why is my ecommerce site not ranking despite keyword optimization?

I’ve been grinding on my little ecommerce shop for months, stuffing my product pages with all the right keywords (or at least I think they’re right), but Google still treats me like I’m invisible. I’m legit starting to wonder if I’m missing something obvious. Is it my site speed? Backlinks? Bad luck? I’m doing everything every SEO blog says, but the rankings just won’t budge. Kinda feeling stuck and low‑key desperate at this point. If anyone’s been through this or sees what I might be overlooking, I’d seriously appreciate any pointers.