Using more and more social media platforms does not necessarily mean more success with online presence and branding. The same holds true with having too many profiles/pages. In fact, it can very well be counterproductive and cannibalise online activity and credibility. Much better to choose only a few, use them regularly, and use them well!
There is no magic trick to SEO. To achieve good (high) search engine rankings, you need to take an all-encompassing, ground-up approach, and implement an SEO strategy that is closely integrated with the making of your website. A site rich in content but also a design with strong User Experience.
Obsessing with your website's search engine rankings is not healthy; for you or your website. Play it cool with SEO and results will come!
Some companies & organisations try to come off as being more popular by actually buying facebook 'likes'. Not only is this a fake image, but it's actually harming your reputation & rankings.