I would change this to:
1. Find a profitable niche 2. See if you could market to said niche in a way where you have an unfair advantage. 3. If yes to 2, market and sell the product before you have it to ensure demand 4. Build the product.
1. Find a profitable niche 2. See if you could market to said niche in a way where you have an unfair advantage. 3. If yes to 2, market and sell the product before you have it to ensure demand 4. Build the product.
It is possible your project will fail; try to figure out why. Pick a new project and try again.