1. Engineer
Having your own Engineer. Create to have your own sound vs creating just a song. Fans always recognize their favorite artists' sound.
2. Marketing Plan/Strategy
Knowing who your fans are and putting your sound in front of them is a must.
3. Studio
Having your own studio. This one is very important because creativity shouldn't wait. Many artists without a studio usually put their creativity on hold because they have to book a session. There is nothing like waking up with inspiration and getting straight to work in your own studio. Don't make your creativity and inspirations wait for studio time.