I really enjoyed the book Million Dollar Weekend by Noah Kagan. The gist of the book is: find a way to test your idea before spending a dollar. You can find out if the idea is only good in your head real quick, but most of us don't want to do that because confirming that hurts.
As a person who has made websites for small businesses, I can only offer up my limited slice of experience: a lot of people go
years deep and nearly bankrupt themselves before ever actually proving that anybody wants what they're selling. I'm not saying that's you, just to be clear. Merely a word of caution for anyone in your position.
To this day one of the worst experiences in my career remains a conversation I had with a guy who poured basically his life savings (at 55) into a thing that his friends all told him would be a great idea and they'd be 100% in on. Guess what happened when he finished it and offered it up to them to buy?
People are tricky, and the book makes a good case for road-testing your idea. If it's good you'll have money in your pocket without too much effort. If it's not, you'll find a curious amount of resistance, and that's valuable.
https://www.amazon.ca/Million-Dollar...1524905&sr=8-1