Technical / On-Page SEO Assistance

I need someone that can help me a little with some technical SEO issues I seem to be facing.

I have some issues with Google search console, my meta title not updating in Google (it's been like a week and the sitemap has been read), dealing with my old domain (it seems to be ranking pretty well now), and some other questions. Not exactly sure how to price it, but I'm willing to pay someone to help me get to the bottom of it.

So basically, I just have a few questions I want to ask, and I feel like it's best if I just pay someone that knows what they're doing rather than posting in the SEO section for help. And maybe you can also give me some advice on improving on-page SEO

This is some advanced stuff when it comes to On Page SEO - https://pageoptimizer.pro/ , https://www.link-assistant.com/news/tf-idf-tool.html

You basically mimic what sites that are already ranking on Google doing to your site.

About the issue that you're having I highly doubt that it's own Google fault since the last indexing problem is not fully solved at all.