General guideline for developing a game?

I work full time as a music composer and at a younger age had a real fascination with game design, however ended up choosing i different path.

Recently in my free time (not much) I started learning UE4, C++, Maya, as this has always been a dream. I would love to know if anyone could give me a general outline

of what order to go with in creating a game. Im sure the story is #1, but now what? Is it asset creation? Level design?

Cheers!

Thanks for the advice! Yeah I totally understand making a very detailed large scaled game is unrealistic for one person with the skill and knowledge I have. My goal is to create the first level, however long that takes, and maybe take it from there if it actually turns out alright.