Backlinks for 100+ post sites?

Hey everyone,

I am sure this is gonna be a stupid question but my website just hit the 4-month mark a couple of weeks back. Since the second month, I have been building backlinks.
I have been building only guest post/niche edit links and started to realize that I don't really know when, or if, I should even be building links to internal pages.

I have about 30-40 DA50+ links pointing to my homepage now with branded and naked URLs to keep it looking natural. I pay $100 to $300 for these links and was curious if there is any point linking to my internal pages with links like this? Or I should really only focus on the home page?
I ask because if I am buying a few of these links per inner page it will take a good amount of money per article and some of these articles only get like 50-100 searches a month.

Anyone with experience in this area, what would you do?

Thanks in advance to anyone that replies.

use both home page and naked urls make backlinks.
guest post backlinks is good butt use more other method just like daily basis blog comment and tier2 link building.increase your site more visitors.

You should totally make backlinks to your posts, it will help in improving your rankings.

Majority of the links to home page and link out to your money articles from the home page. The rest of the links can go to individual pages which are about to rank and need a push to get on the first page, or from bottom of first page to top 3.