Financial modeling for startups?

Hey all 👋 long time lurker here. Was building a mobile learning app for the last 6 months but looking to pivot now for a multitude of reasons (low willingness to pay, nice-to-have, not a need-to-have etc.)

Looking to validate a new problem. How much time do you founders spend on:

1️⃣ Financial modeling?
2️⃣ Wrangling financial statements into excel?
3️⃣ Preparing outputs in powerpoint?
4️⃣ Any other major pains?

Thanks much in advance