Looking for organic traffic advice

I started a new brand selling fish apparel and I’m getting next to no organic traffic which I’m sure is normal. Website has been up for a few months and I’m trying to not depend on ads for my traffic. Other than social media what other steps can I take to drive traffic and increase my SEO ranking? I know I need to optimize for key words but what should that actually look like? I see alot about blogging but will that drive traffic to my products or just my blog post?