How to start

Product marketing person here looking to learn no-code to experiment with some new ideas. I am a bit overwhelmed in how to start given all of the tools available. My first idea is just a simple comparison calculator thqat I built in Sheets. Any thoughts on how to start?

You need to give more details of what to calculate. Use number entry elements, and math column to do calculations

I want to look at 2 different amortization scenarios. Change the house value and the interest rate and compare the 2

You could have a look at the templates to see if there are similar calculators you could learn from.