While Google is on record as stating these quality raters do not directly influence where you rank (without more senior analysts making a call on the quality of your website, I presume?) – there are some things in this document, mostly of a user experience nature (UX) that all search engine optimisers and Webmasters of any kind should note going forward.
I would say that it definitely depends on the niche that you’re in. If your niche is quite small, then it’s probably easier for you to rank for your mid-tail keywords and you should definitely give it a go! Otherwise, it might be better to start with your long-tail keywords and work your way up to mid-tail keywords and eventually your head keywords. So, I’d say: analyse your competition, see where you stand and establish your game plan! Good luck Naved :)!
Link building is not JUST a numbers game, though. One link from a “trusted authority” site in Google could be all you need to rank high in your niche. Of course, the more “trusted” links you attract, the more Google will trust your site. It is evident you need MULTIPLE trusted links from MULTIPLE trusted websites to get the most from Google in 2020.
Consider the average cost-per-click in your industry. Before deciding that SEM is right for your business, research and consider how much you’ll need to spend to show in paid search results. Keywords have varying cost-per-clicks based on competition. If your cost-per-click is low, it might be the right strategy for you. On the flipside, a very high cost-per-click might make you decide you’re better off focusing on SEO.