How do I properly index my site on Google

So I have my website submitted on Google and verified. But I don't know if this is necessary but what I do after writing a new post is I submit the URL to Google search console to be indexed.
But now that's making a mess with a long list of different URLs on my property.
I have tried indexing using my domain so whenever I post a new article it automatically gets indexed but what happens each time I try to do this, is the txt file I add to my domain somehow messes with my name server and switches it back to the default name server instead of pointing to the hosting account I use.
So this makes my site go offline.

Is there something I am not doing right or I always have to manually submit the URL of every post Everytime.

It sounds like you're creating a new Search Console property every single time you publish a new blog post — that would be wrong.

Have you tried using the URL Inspection Tool? There's a big search bar in the middle of the screen where you're able to paste a URL to inspect it and then request it to be indexed. It usually indexes my new posts in seconds (seriously).

Here's a little help from Google: https://support.google.com/webmasters/answer/9012289?hl=en

Sweely said:

It sounds like you're creating a new Search Console property every single time you publish a new blog post — that would be wrong.

Have you tried using the URL Inspection Tool? There's a big search bar in the middle of the screen where you're able to paste a URL to inspect it and then request it to be indexed. It usually indexes my new posts in seconds (seriously).

Here's a little help from Google: https://support.google.com/webmasters/answer/9012289?hl=en

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Thanks, but when I do some URLs show

URL not in property
Inspect a URL in the currently selected property or switch properties

maxdosh said:

Thanks, but when I do some URLs show

URL not in property
Inspect a URL in the currently selected property or switch properties

Click to expand...

The property in Search Console needs to be your domain name (not any subdirectories). That's why I think you're getting this error.

Sweely said:

The property in Search Console needs to be your domain name (not any subdirectories). That's why I think you're getting this error.

Click to expand...

When I tried doing that by adding TXT to my domain, the nameservers change automatically and make my site go offline

maxdosh said:

When I tried doing that by adding TXT to my domain, the nameservers change automatically and make my site go offline

Click to expand...

Where is your domain name hosted? Are you sure you're adding a new TXT record and not changing your nameservers?