Google Search Console Indexing Troubleshooting

My website is not being indexed properly on Google, and I'm seeking an experienced professional to assist me.

I've already taken several steps to try to resolve the issue, including:
- Submitting a sitemap
- Requesting indexing in Search Console
- Checking for crawl errors

I suspect the issue may have been caused by recent updates to my website's content and structure. Therefore, I'm seeking someone with the following skills and experience:
- Deep understanding of Google Search Console and GMB
- Proven track record in troubleshooting indexing issues
- Experience with website content and structure updates
- Familiarity with sitemaps and crawl errors