While is a good idea to start with Adwords because it’s faster, you should also begin working with SEO. Use Adwords to start getting traffic and in parallel work on your SEO, content marketing plan, and social media campaigns so that you get organic traffic and visits from social networks. SEO impacts your ranking and visibility in the search engine for key terms. SEO also affects your Google AdWords performance.
You can use Adwords when you want traffic fast but you need SEO for a long term and sustainable online success.
Hope this helps,