SEO matters hugely to websites and you very much get out what you put in.
But something is always better than nothing, and there are three quick and easy steps you can take to make sure you’re at least meeting SEO minimum requirements.
Using Google webmaster tools, make sure your site is actually being indexed - without this, no-one will be able to find you. Check how many pages are indexed versus how many pages your site has - if there’s a big difference, click the advanced button to find out why so you can address it.
Focus on your target keywords, making sure they are included in relevant title tags and that each page tag is unique.
Finally, work on getting as many links to your site as you can from other sites or media or blog articles, as that increases your site’s authority, and thus its search engine ranking.