I need help and suggestions from SEO specialists

Hi, hope you are doing good . I am purchasing a complete wordpress blog of Health and lifestyle today from a senior member of BHW. It has few articles as well. So now I want to earn from that blog but i know that its not easy without doing seo. So i have a few questions regarding that. Please correct me if i am wrong somewhere.

1. Do i need to do keyword research before writing articles? And once i did research then i have to write article using that keyword in my title of the article? (Is there any trusted paid service for that in BHW)
2. Once after finishing the article do i need to create backlinks for that article to rank it? If yes, then what types of backlinks i need to create do follow or no follow?. (Is there any trusted paid service in BHW for that, i would love to know about that too)
3. What are tier 1,2,3 types of backlinks? Are they useful?
4. What is serps rank? How does it work?
5. Last and the least is, when i write articles, from where i can get the images related to those topic? Is it ok if i use images from google ?

I am not new in blogging. I had a blog of mobile phone reviews a couple of years back and wrote about 25+ articles in that, but back then i didnt know about seo factors. So i used to just write articles in a hope that i will get visitors but didnt happen anything. so, now i want to start blogging again and it will be much appreciated if someone help me out with this so i can too earn money like you people do.

Thanks in advance

Yes you need to always do keywords research for that I would suggest use semrush trial account and find keywords for the long term. Paid content writers @ZionIce @Sherb @Nerva are good in my opinion.

Of course you’ll need backlinks I would only suggest guest posts and niche edits to build your authority site, and then power these guest posts and niche edits with high quality pbns. I would advise you to get in touch with them before buying so you know exactly what you’re buying. @jefis huge amount of guest post and backlinks data with step by step guides, @The SEO niche relevant niche edits and @tiiberius strong pbns.

Tier 1,2, and 3 links are which you don’t point on your money site, you can use these if you need to index or power a parasite.

Check semrush for it.

No it’s not okay take images form google, use unsplash, pixels only royalty free images are allowed.