The truth is, probably not, and the higher likelihood is that you have managed to gain enough exposure to start to build a loyal following who are actually enjoying the content you are putting in front of them. This is on the understanding that not all traffic comes from search engines, some will come through social media interaction, some as a result of working with and engaging the blogging community and of course by actually producing that great content which is interesting and draws in your visitors.
There is also a high likelihood that you may have learned a few lessons about how you can promote your own blog using SEO. This is going to include some of the techniques that have been discussed in this blog. For example, which social media sites best suit your chosen topics, where to place keywords so that they have more impact and perhaps how to find and establish backlinks to your blog.
Don’t take these new found skills out of context however, yes of course you will have learned some aspects of SEO and yes, if you want to, you can share this information with others to help them out. But remember that most of the lessons you will have learned are with respect to your blog, your topic and your niche. That is for the simple reason, it is where your focus will have been. Some lessons will also of course have been generic in nature and could possibly be useful to bloggers working in a different arena.
None of this means you are an expert in SEO but it does mean that you have useful information you can share based on your personal experience of what does work versus what doesn’t work. The best way to communicate that is by providing genuine and honest reviews that are in context with your actual experiences.
Taking this approach is much more likely to gain you the respect and trust of your visitors, particularly if you have honestly disclosed your bad experiences as well as your good experiences. In other words just tell it how it is and don’t try and mislead with outlandish claims.