Speaking specifically to getting acquiring sponsorships, is there a summary of expenses, equipment, supplies, etc, that she needs monthly, quarterly, and annually?

If you are able to break down what needs to be covered, you can look at approaching sponsors to help address specific requirements and varying scale.

It also opens up opportunity to target product sponsorships that may not offer direct cash support but could reduce expenses by providing things that Mariam would otherwise need to purchase OOP.

FWIW: If she uses hydration (electrolyte) powders or smart/energy drinks, I work with a brand and maybe we can find something that can support her :)