You need to have a product and a method to deliver it live. The rest is getting a record label (Don't be in a hurry, look at what hey have to offer and what is required from you.) You can approach near any label and they'll be willing to take you as long as you have content and do gigging.
It depends what you mean by the word "success". What are you? A record label, a recording artist, an artist manager?
I would say that should find yourself first or where you fit within the industry. It's also important to arm yourself with knowledge on how the music works while you work. Because you need to put what you read in action.
If you are an artist, you should record as much as possible and promote your music religiously. But promoting and marketing blindly doesn't help, you should know where your audience is. Its a case of working smart and not hard.
But having said, there is really no formula on how to be successful in the music industry. It's a cut-throat industry and risky for the labels, who are responsible for putting out the music.