Migrate my wordpress IONOS blog to Substack

I have a wordpress blog hosted on IONOS and want to migrate my posts to substack. I want someone who's done this before, can preserve formatting, and provide one or two sessions to walk me through how to use Substack. Please only apply if you've done a similar migration. Fluent English preferred. Please share estimated hours and any relevant examples. Eg of blog post https://heartmindbreathe.com/the-millimetres-mean-more-than-the-miles/

I want coaching to learn the process rather than this being managed externally; a coach to teach me the process step by step.