After building the product a couple of times, I have decided to try validating an idea with FB ads.
The funnel was like Ads -> Landing Page -> Signup form
Although the result is not ideal, I learned something from it, and I am still learning.
This is what I learned:
This is the landing page
https://www.investinsight.app
I was fortunate enough to have people giving me feedback on Linkedin, and it made me realize even if we're solopreneurs, we're not alone.