There has been a drop in my Google ranking and this news has really depressed me. There is also a phenomenal drop in my traffic. To attract quality traffic to my site, I tried everything in my capacity too. How to restore my ranking is something I just don’t know. Do you think that I should approach expert SEO professionals for the job? What do you think about hiring a professional? Would it be too expensive to get a professional for the work I have in mind? Would it be better if I looked up a good tutorial online instead?

Just focus on link building strategy to get number of quality backlink and it is more beneficial if you get dofollow backlinks because PR is depend backlink of your website.