Hi @Nadal_Navin, thanks for picking HBB Forum and happy to see your first post bro.
I know how hectic it'll be to create backlinks these days. But always give preference to your blog content, then your social media content, and come back to backlinks. This is the order I usually follow.
If you are interested in getting backlinks via blog commenting, then keep these in mind:
1. Relevancy: If you are running a tech blog, then don't comment on fashion/sports/etc blogs using your tech blog link, you can do that once in a while, that's natural, but for link building, don't do that.
2. Authority: Authority as in, pick the top blogs having good DA/PA, you can spy on your competitors, and find the blogs they commented, make a list and filter out the articles having good PA and less Spam Score. Comment on them.
Just focus on these two and check your results every month via Moz OSE tool!