Question on 301, coverage issues

Hey guys, I hope you are all having a wonderful day.

Because I really am not.

I have been niche blogging since January, and I have written 50 posts, and I only have about 100 keywords and no traffic at all.
The reason I assume could be that in January I had issues with site design, and WordPress, I had to rebuild it all, then in February still to this day, I keep having coverage issues with GCS.

But the real problem might be that about 2-3 weeks ago, my site stopped working. I had Yoast SEO installed, and had the Category URL prefix remove option on.

but then when I pressed on one of the categories, instead of showing all the posts underneath, it showed the full post, and then the next post, and so on. So, I turned that back off, meaning now my URLs have category prefix in them.

But I had a few pages indexed already without the category url prefix, now the new ones are not getting indexed.

So, finally, my question is if I 301 redirect from those pages that were indexed without the category URL prefix, to the same posts with category in them? will this be okay? or will this get them indexed?

Also, how do I get the coverage issue fixed? I had googled for months, and have done all the possible things to do, but google doesn't seem to be coming back to my site, because, had pressed the validate issue button on 6th Feb. and it even knows, that I had requested it then, but nothing changed.
among the pages that are affected by the coverage, issues are those which were indexed without the category URL prefix. and a few category pages.

Please help, I spent hours and hours writing those content, and getting only 100 keywords making me feel really disappointed, because I know the content is good, and optimized and everything else in between.

There can be many reasons for coverage issues.

- Check your sitemap ( dot ) XML
- Check your robots txt file
- Check for 404 pages, and redirect them. 301 the pages of your post which are showing a dead end (404 error). It wouldn't harm.

Regarding ranking your keywords - I am not sure what methodology was applied for keyword research. Whether they are of Low, Mid or High Competition.

Your Niche - You need to check how others are doing in your niche and learn from them. Get inspired from them and implement good things.

Advice: Before messing around with any option in Yoast or any plugin, first try to find out what would happen if you do this. There are plenty of YouTube videos.

and finally, if your content is good and if you have done your proper keyword research you will rank.

thank you, I know what you mean, this is why this time, I decided to ask it here before going ahead with 301 redirects.

The keywords were low competition, the keywords I have are from the first few articles I wrote, so, most of my articles are not even yet indexed. this I am still working on to find out why, because the domain was aged, and it was not supposed to go for sandbox, but perhaps, google might still have sandboxed.

I wouldn't worry so much about coverage issues, but I read somewhere, that the longer they remain the worse it will be for the SEO of the website? is this true?

I mean, google might start to think that this is a low-quality website, and will start to save on crawl budget, crawling less and less frequently. once I read that online, I started worrying about the coverage, otherwise, I had spent the whole march just focusing on the content. I indeed to to just that, till I reach 100, but the lack of keywords and the indexation kinda makes you wonder if your time is going to be worth it