If you've got 301 redirects in place and there are no http URLs left on your site, you edit your sitemaps and change all "http" references to "https". Then go into your preferred version of Search Console and resubmit any relevant sitemaps there. That way, you will see correct index status data for the preferred version of your site (because the index status is based on what's in your sitemap). There's no need to maintain or submit sitemaps for any other variant of your site if there is only one version actually serving: in that case, the sitemap you submit should contain all the canonical URLs you'd like to be in the index.
In other words, if your blog is serving only on https://example.com, you need a sitemap with all your pages in that form, submitted in that property in Search Console. Don't submit sitemaps for http://example.com, http://www.example.com, or https://www.example.com - because those are not canonical URLs, you don't want them in the index, and they won't index anyway (with 301 redirects in place).
You might also find it helpful to check out John Mueller's FAQ about https migrations: