Well-being physical activity app

Hi beautiful community,

I am applying for funding for this app idea that I have in the physical activity-well-being spectrum. I have no experience writing pitches to start-up accelerators, but will love to connect with any entrepreneurs or expert in this area for 15 min to help me in my research.

Any ideas where to get resources for how to write sucessful start -up pitches, proposal and business plans online to actually get funding. The program I am applying for is called seed starts and it is focused on the UN developmental goals - they are all about social impact.

The deadline is November 1st, so I really need help

Thank you