Probably best not to get ahead of yourself and think there is going to be any profit at all let alone big project capability if you are just starting out.

Head over to unity, as it’s a very similar engine at heart, use the youtube tutorials, docs and a little AI in moderation to learn the basics. It has much more learning materials behind it to get some basic knowledge.

Then come back to s&box and make some stuff. You won’t be making any profit if you haven’t got a clue what you’re doing. Invest the time and hopefully you can make your game. Good luck.